Official Certification Course
Become a php Developer
Master php with our comprehensive, free interactive course. Pass the exam to earn your industry-recognized certificate. Includes interactive examples, quizzes, and a verifiable digital certificate upon completion.
php
Course Syllabus
1PHP Tutorial
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2PHP Reference
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3PHP Exercises
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4PHP Quiz
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5PHP Examples
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6PHP Introduction
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7PHP Installation
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8PHP Syntax
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9PHP Comments
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10PHP Multiline Comments
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11PHP Variables
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12PHP Variable Scope
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13PHP Data Types
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14PHP Strings
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15PHP String Functions
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16PHP - Modify Strings
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17PHP - Concatenate Strings
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18PHP Slicing Strings
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19PHP - Escape Characters
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20PHP Numbers
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21PHP Type Casting
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22PHP Math
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23PHP Constants
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24PHP Magic Constants
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25PHP Operators
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26PHP if Statements
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27PHP if Operators
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28PHP if...else Statements
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29PHP if Shorthand
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30PHP Nested if Statements
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31PHP switch Statement
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32PHP Loops
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33PHP while Loop
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34PHP do while Loop
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35PHP for loop
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36PHP foreach loop
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37PHP Break Statement
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38PHP Continue Statement
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39PHP Functions
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40PHP Arrays
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41PHP Indexed Arrays
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42PHP Associative Arrays
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43PHP Create Arrays
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44PHP Access Arrays
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45PHP Update Array Items
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46PHP Add Array Items
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47PHP Remove Array Items
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48PHP Sorting Arrays
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49PHP Multidimensional Arrays
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50PHP Array Functions
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51PHP Superglobals
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52PHP $GLOBALS Superglobal
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53PHP $_SERVER Superglobal
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54PHP $_REQUEST Superglobal
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55PHP $_POST Superglobal
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56PHP $_GET Superglobal
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57PHP Regular Expressions
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58PHP Regular Expression Functions
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59PHP Form Handling
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60PHP Form Validation
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61PHP Forms Required Fields
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62PHP Forms Validate E-mail and URL
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63PHP Complete Form Example
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64PHP Date and Time
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65PHP include and require
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66PHP File Handling
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67PHP File Open/Read/Close
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68PHP File Create/Write
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69PHP File Upload
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70PHP Cookies
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71PHP Sessions
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72PHP Filters
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73PHP Filters Advanced
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74PHP Callback Functions
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75PHP and JSON
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76PHP Exceptions
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77PHP OOP Intro
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78PHP OOP Classes and Objects
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79PHP OOP Constructor
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80PHP OOP Destructor
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81PHP OOP Access Modifiers
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82PHP OOP Inheritance
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83PHP OOP Class Constants
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84PHP OOP Abstract Classes
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85PHP OOP Interfaces
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86PHP OOP Traits
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87PHP OOP Static Methods
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88PHP OOP Static Properties
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89PHP Namespaces
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90PHP Iterables
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91PHP: MySQL Database
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92PHP MySQL Connect to database
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93PHP MySQL Create Database
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94PHP MySQL Create Table
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95PHP MySQL Insert Data
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96PHP MySQL Get Last Inserted ID
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97PHP MySQL Insert Multiple Records
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98PHP MySQL Prepared Statements
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99PHP MySQL Select Data
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100PHP MySQL Select Data With WHERE Clause
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101PHP MySQL Select Data With ORDER BY Clause
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102PHP MySQL Delete Data
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103PHP MySQL Update Data
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104PHP MySQL Limit Data Selections
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105PHP XML Parsers
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106PHP SimpleXML Parser
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107PHP SimpleXML - Get Node/Attribute Values
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108PHP XML Expat Parser
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109PHP XML DOM Parser
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110PHP - AJAX Introduction
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111PHP - AJAX and PHP
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112PHP AJAX and MySQL
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113PHP AJAX and XML
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114PHP AJAX Live Search
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115PHP AJAX Poll
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116PHP Online Compiler (Editor / Interpreter)
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117Create PHP Server | W3Schools.com | W3Schools Spaces
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118PHP Syllabus (Curriculum)
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119PHP Study Plan (Lesson Plan)
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120W3Schools PHP Certificate
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121PHP Array Functions
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122PHP array() Function
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123PHP array_change_key_case() Function
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124PHP array_chunk() Function
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125PHP array_column() Function
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126PHP array_combine() Function
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127PHP array_count_values() Function
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128PHP array_diff() Function
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129PHP array_diff_assoc() Function
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130PHP array_diff_key() Function
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131PHP array_diff_uassoc() Function
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132PHP array_diff_ukey() Function
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133PHP array_fill() Function
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134PHP array_fill_keys() Function
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135PHP array_filter() Function
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136PHP array_flip() Function
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137PHP array_intersect() Function
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138PHP array_intersect_assoc() Function
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139PHP array_intersect_key() Function
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140PHP array_intersect_uassoc() Function
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141PHP array_intersect_ukey() Function
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142PHP array_key_exists() Function
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143PHP array_keys() Function
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144PHP array_map() Function
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145PHP array_merge() Function
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146PHP array_merge_recursive() Function
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147PHP array_multisort() Function
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148PHP array_pad() Function
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149PHP array_pop() Function
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150PHP array_product() Function
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151PHP array_push() Function
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152PHP array_rand() Function
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153PHP array_reduce() Function
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154PHP array_replace() Function
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155PHP array_replace_recursive() Function
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156PHP array_reverse() Function
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157PHP array_search() Function
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158PHP array_shift() Function
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159PHP array_slice() Function
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160PHP array_splice() Function
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161PHP array_sum() Function
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162PHP array_udiff() Function
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163PHP array_udiff_assoc() Function
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164PHP array_udiff_uassoc() Function
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165PHP array_uintersect() Function
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166PHP array_uintersect_assoc() Function
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167PHP array_uintersect_uassoc() Function
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168PHP array_unique() Function
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169PHP array_unshift() Function
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170PHP array_values() Function
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171PHP array_walk() Function
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172PHP array_walk_recursive() Function
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173PHP arsort() Function
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174PHP asort() Function
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175PHP compact() Function
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176PHP count() Function
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177PHP current() Function
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178PHP each() Function
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179PHP end() Function
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180PHP extract() Function
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181PHP in_array() Function
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182PHP key() Function
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183PHP krsort() Function
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184PHP ksort() Function
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185PHP list() Function
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186PHP natcasesort() Function
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187PHP natsort() Function
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188PHP next() Function
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189PHP pos() Function
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190PHP prev() Function
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191PHP range() Function
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192PHP reset() Function
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193PHP rsort() Function
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194PHP shuffle() Function
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195PHP sizeof() Function
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196PHP sort() Function
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197PHP uasort() Function
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198PHP uksort() Function
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199PHP usort() Function
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200PHP Calendar Functions
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201PHP cal_days_in_month() Function
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202PHP cal_from_jd() Function
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203PHP cal_info() Function
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204PHP cal_to_jd() Function
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205PHP easter_date() Function
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206PHP easter_days() Function
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207PHP frenchtojd() Function
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208PHP gregoriantojd() Function
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209PHP jddayofweek() Function
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210PHP jdmonthname() Function
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211PHP jdtofrench() Function
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212PHP jdtogregorian() Function
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213PHP jdtojewish() Function
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214PHP jdtojulian() Function
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215PHP jdtounix() Function
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216PHP jewishtojd() Function
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217PHP juliantojd() Function
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218PHP unixtojd() Function
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219PHP Date/Time Functions
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220PHP checkdate() Function
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221PHP date_add() Function
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222PHP date_create_from_format() Function
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223PHP date_create() Function
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224PHP date_date_set() Function
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225PHP date_default_timezone_get() Function
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226PHP date_default_timezone_set() Function
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227PHP date_diff() Function
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228PHP date_format() Function
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229PHP date_get_last_errors() Function
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230PHP date_interval_create_from_date_string() Function
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231PHP date_interval_format()/DateInterval::format() Function
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232PHP date_isodate_set() Function
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233PHP date_modify() Function
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234PHP date_offset_get() Function
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235PHP date_parse_from_format() Function
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236PHP date_parse() Function
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237PHP date_sub() Function
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238PHP date_sun_info() Function
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239PHP date_sunrise() Function
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240PHP date_sunset() Function
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241PHP date_time_set() Function
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242PHP date_timestamp_get() Function
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243PHP date_timestamp_set() Function
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244PHP date_timezone_get() Function
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245PHP date_timezone_set() Function
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246PHP date() Function
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247PHP getdate() Function
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248PHP gettimeofday() Function
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249PHP gmdate() Function
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250PHP gmmktime() Function
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251PHP gmstrftime() Function
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252PHP idate() Function
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253PHP localtime() Function
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254PHP microtime() Function
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255PHP mktime() Function
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256PHP strftime() Function
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257PHP strptime() Function
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258PHP strtotime() Function
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259PHP time() Function
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260PHP timezone_abbreviations_list() Function
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261PHP timezone_identifiers_list() Function
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262PHP timezone_location_get() Function
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263PHP timezone_name_from_abbr() Function
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264PHP timezone_name_get() Function
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265PHP timezone_offset_get() Function
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266PHP timezone_open() Function
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267PHP timezone_transitions_get() Function
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268PHP timezone_version_get() Function
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269PHP Directory Functions
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270PHP chdir() Function
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271PHP chroot() Function
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272PHP closedir() Function
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273PHP dir() Function
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274PHP getcwd() Function
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275PHP opendir() Function
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276PHP readdir() Function
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277PHP rewinddir() Function
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278PHP scandir() Function
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279PHP Error Functions
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280PHP debug_backtrace() Function
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281PHP debug_print_backtrace() Function
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282PHP error_get_last() Function
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283PHP error_log() Function
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284PHP error_reporting() Function
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285PHP restore_error_handler() Function
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286PHP restore_exception_handler() Function
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287PHP set_error_handler() Function
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288PHP set_exception_handler() Function
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289PHP trigger_error() Function
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290PHP Exception Reference
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291PHP Filesystem Functions
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292PHP basename() Function
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293PHP chgrp() Function
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294PHP chmod() Function
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295PHP chown() Function
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296PHP clearstatcache() Function
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297PHP copy() Function
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298PHP delete() Function
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299PHP dirname() Function
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300PHP disk_free_space() Function
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301PHP disk_total_space() Function
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302PHP diskfreespace() Function
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303PHP fclose() Function
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304PHP feof() Function
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305PHP fflush() Function
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306PHP fgetc() Function
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307PHP fgetcsv() Function
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308PHP fgets() Function
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309PHP fgetss() Function
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310PHP file() Function
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311PHP file_exists() Function
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312PHP file_get_contents() Function
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313PHP file_put_contents() Function
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314PHP fileatime() Function
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315PHP filectime() Function
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316PHP filegroup() Function
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317PHP fileinode() Function
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318PHP filemtime() Function
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319PHP fileowner() Function
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320PHP fileperms() Function
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321PHP filesize() Function
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322PHP filetype() Function
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323PHP flock() Function
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324PHP fnmatch() Function
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325PHP fopen() Function
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326PHP fpassthru() Function
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327PHP fputcsv() Function
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328PHP fputs() Function
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329PHP fread() Function
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330PHP fscanf() Function
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331PHP fseek() Function
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332PHP fstat() Function
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333PHP ftell() Function
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334PHP ftruncate() Function
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335PHP fwrite() Function
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336PHP glob() Function
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337PHP is_dir() Function
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338PHP is_executable() Function
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339PHP is_file() Function
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340PHP is_link() Function
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341PHP is_readable() Function
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342PHP is_uploaded_file() Function
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343PHP is_writable() Function
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344PHP is_writeable() Function
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345PHP lchgrp() Function
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346PHP lchown() Function
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347PHP link() Function
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348PHP linkinfo() Function
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349PHP lstat() Function
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350PHP mkdir() Function
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351PHP move_uploaded_file() Function
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352PHP parse_ini_file() Function
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353PHP parse_ini_string() Function
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354PHP pathinfo() Function
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355PHP pclose() Function
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356PHP popen() Function
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357PHP readfile() Function
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358PHP readlink() Function
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359PHP realpath() Function
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360PHP realpath_cache_get() Function
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361PHP realpath_cache_size() Function
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362PHP rename() Function
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363PHP rewind() Function
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364PHP rmdir() Function
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365PHP set_file_buffer() Function
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366PHP stat() Function
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367PHP symlink() Function
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368PHP tempnam() Function
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369PHP tmpfile() Function
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370PHP touch() Function
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371PHP umask() Function
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372PHP unlink() Function
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373PHP Filter Functions
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374PHP filter_has_var() Function
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375PHP filter_id() Function
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376PHP filter_input() Function
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377PHP filter_input_array() Function
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378PHP filter_list() Function
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379PHP filter_var() Function
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380PHP filter_var_array() Function
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381PHP FTP Functions
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382PHP ftp_alloc() Function
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383PHP ftp_cdup() Function
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384PHP ftp_chdir() Function
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385PHP ftp_chmod() Function
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386PHP ftp_close() Function
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387PHP ftp_connect() Function
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388PHP ftp_delete() Function
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389PHP ftp_exec() Function
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390PHP ftp_fget() Function
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391PHP ftp_fput() Function
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392PHP ftp_get() Function
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393PHP ftp_get_option() Function
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394PHP ftp_mdtm() Function
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395PHP ftp_mkdir() Function
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396PHP ftp_mlsd() Function
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397PHP ftp_nb_continue() Function
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398PHP ftp_nb_fget() Function
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399PHP ftp_nb_fput() Function
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400PHP ftp_nb_get() Function
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401PHP ftp_nb_put() Function
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402PHP ftp_nlist() Function
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403PHP ftp_pasv() Function
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404PHP ftp_put() Function
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405PHP ftp_pwd() Function
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406PHP ftp_quit() Function
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407PHP ftp_raw() Function
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408PHP ftp_rawlist() Function
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409PHP ftp_rename() Function
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410PHP ftp_rmdir() Function
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411PHP ftp_set_option() Function
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412PHP ftp_site() Function
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413PHP ftp_size() Function
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414PHP ftp_ssl_connect() Function
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415PHP ftp_systype() Function
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416PHP JSON Functions
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417PHP json_decode() Function
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418PHP json_encode() Function
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419PHP Keywords Reference
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420PHP abstract Keyword
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421PHP and Keyword
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422PHP as Keyword
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423PHP break Keyword
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424PHP callable Keyword
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425PHP case Keyword
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426PHP catch Keyword
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427PHP class Keyword
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428PHP clone Keyword
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429PHP const Keyword
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430PHP continue Keyword
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431PHP declare Keyword
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432PHP default Keyword
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433PHP do Keyword
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434PHP echo Keyword
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435PHP else Keyword
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436PHP elseif Keyword
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437PHP empty Keyword
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438PHP enddeclare Keyword
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439PHP endfor Keyword
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440PHP endforeach Keyword
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441PHP endif Keyword
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442PHP endswitch Keyword
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443PHP endwhile Keyword
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444PHP extends Keyword
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445PHP final Keyword
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446PHP finally Keyword
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447PHP fn Keyword
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448PHP for Keyword
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449PHP foreach Keyword
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450PHP function Keyword
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451PHP global Keyword
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452PHP if Keyword
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453PHP implements Keyword
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454PHP include Keyword
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455PHP include_once Keyword
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456PHP instanceof Keyword
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457PHP insteadof Keyword
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458PHP interface Keyword
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459PHP isset() Function
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460PHP list Keyword
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461PHP namespace Keyword
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462PHP new Keyword
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463PHP or Keyword
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464PHP private Keyword
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465PHP protected Keyword
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466PHP public Keyword
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467PHP require Keyword
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468PHP require_once Keyword
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469PHP return Keyword
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470PHP static Keyword
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471PHP switch Keyword
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472PHP throw Keyword
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473PHP trait Keyword
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474PHP try Keyword
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475PHP use Keyword
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476PHP var Keyword
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477PHP while Keyword
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478PHP xor Keyword
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479PHP yield Keyword
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480PHP yield from Keyword
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481PHP libxml Functions
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482PHP libxml_clear_errors() Function
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483PHP libxml_disable_entity_loader() Function
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484PHP libxml_get_errors() Function
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485PHP libxml_get_last error() Function
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486PHP libxml_set_external_entity_loader() Function
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487PHP libxml_set_streams_context() Function
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488PHP libxml_use_internal_errors() Function
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489PHP Mail Functions
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490PHP ezmlm_hash() Function
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491PHP mail() Function
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492PHP Math Functions
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493PHP abs() Function
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494PHP acos() Function
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495PHP acosh() Function
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496PHP asin() Function
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497PHP asinh() Function
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498PHP atan() Function
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499PHP atan2() Function
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500PHP atanh() Function
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501PHP base_convert() Function
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502PHP bindec() Function
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503PHP ceil() Function
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504PHP cos() Function
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505PHP cosh() Function
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506PHP decbin() Function
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507PHP dechex() Function
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508PHP decoct() Function
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509PHP deg2rad() Function
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510PHP exp() Function
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511PHP expm1() Function
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512PHP floor() Function
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513PHP fmod() Function
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514PHP getrandmax() Function
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515PHP hexdec() Function
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516PHP hypot() Function
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517PHP intdiv() Function
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518PHP is_finite() Function
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519PHP is_infinite() Function
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520PHP is_nan() Function
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521PHP lcg_value() Function
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522PHP log() Function
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523PHP log10() Function
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524PHP log1p() Function
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525PHP max() Function
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526PHP min() Function
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527PHP mt_getrandmax() Function
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528PHP mt_rand() Function
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529PHP mt_srand() Function
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530PHP octdec() Function
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531PHP pi() Function
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532PHP pow() Function
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533PHP rad2deg() Function
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534PHP rand() Function
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535PHP round() Function
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536PHP sin() Function
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537PHP sinh() Function
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538PHP sqrt() Function
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539PHP srand() Function
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540PHP tan() Function
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541PHP tanh() Function
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542PHP Misc. Functions
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543PHP connection_aborted() Function
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544PHP connection_status() Function
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545PHP connection_timeout() Function
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546PHP constant() Function
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547PHP define() Function
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548PHP defined() Function
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549PHP die() Function
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550PHP eval() Function
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551PHP exit() Function
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552PHP get_browser() Function
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553PHP __halt_compiler() Function
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554PHP highlight_file() Function
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555PHP highlight_string() Function
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556PHP hrtime() Function
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557PHP ignore_user_abort() Function
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558PHP pack() Function
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559PHP php_strip_whitespace() Function
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560PHP show_source() Function
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561PHP sleep() Function
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562PHP sys_getloadavg() Function
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563PHP time_nanosleep() Function
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564PHP time_sleep_until() Function
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565PHP uniqid() Function
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566PHP unpack() Function
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567PHP usleep() Function
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568PHP MySQLi Functions
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569PHP mysqli affected_rows() Function
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570PHP mysqli autocommit() Function
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571PHP mysqli change_user() Function
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572PHP mysqli character_set_name() Function
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573PHP mysqli close() Function
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574PHP mysqli commit() Function
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575PHP mysqli connect() Function
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576PHP mysqli connect_errno() Function
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577PHP mysqli connect_error() Function
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578PHP mysqli_data_seek() Function
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579PHP mysqli_debug() Function
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580PHP mysqli dump_debug_info() Function
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581PHP mysqli errno() Function
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582PHP mysqli error() Function
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583PHP mysqli error_list() Function
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584PHP mysqli fetch_all() Function
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585PHP mysqli fetch_array() Function
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586PHP mysqli fetch_assoc() Function
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587PHP mysqli fetch_field() Function
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588PHP mysqli fetch_field_direct() Function
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589PHP mysqli fetch_fields() Function
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590PHP lengths / mysqli_fetch_lengths() Function
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591PHP mysqli fetch_object() Function
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592PHP mysqli fetch_row() Function
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593PHP mysqli field_count() Function
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594PHP mysqli field_seek() Function
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595PHP mysqli get_charset() Function
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596PHP mysqli get_client_info() Function
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597PHP mysqli_get_client_stats() Function
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598PHP client_version / mysqli get_client_version() Function
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599PHP mysqli get_connection_stats() Function
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600PHP host_info() / mysqli_get_host_info() Function
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601PHP protocol_version() / mysqli_get_proto_info() Function
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602PHP server_info() / mysqli_get_server_info() Function
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603PHP server_version / mysqli_get_server_version() Function
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604PHP mysqli info() Function
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605PHP mysqli init() Function
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606PHP mysqli insert_id() Function
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607PHP mysqli kill() Function
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608PHP mysqli more_results() Function
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609PHP mysqli multi_query() Function
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610PHP mysqli next_result() Function
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611PHP mysqli options() Function
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612PHP mysqli ping() Function
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613PHP mysqli poll() Function
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614PHP mysqli prepare() Function
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615PHP mysqli query() Function
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616PHP mysqli real_connect() Function
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617PHP mysqli real_escape_string() Function
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618PHP mysqli real_query() Function
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619PHP mysqli reap_async_query() Function
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620PHP mysqli refresh() Function
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621PHP mysqli_rollback() Function
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622PHP mysqli select_db() Function
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623PHP mysqli set_charset() Function
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624PHP mysqli sqlstate() Function
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625PHP mysqli_ssl_set() Function
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626PHP mysqli stat() Function
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627PHP mysqli stmt_init() Function
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628PHP mysqli_thread_id() Function
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629PHP mysqli_thread_safe() Function
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630PHP mysqli use_result() Function
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631PHP mysqli warning_count() Function
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632PHP Network Functions
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633PHP checkdnsrr() Function
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634PHP closelog() Function
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635PHP dns_check_record() Function
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636PHP dns_get_mx() Function
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637PHP dns_get_record() Function
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638PHP fsockopen() Function
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639PHP gethostbyaddr() Function
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640PHP gethostbyname() Function
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641PHP gethostbynamel() Function
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642PHP gethostname() Function
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643PHP getmxrr() Function
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644PHP getprotobyname() Function
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645PHP getprotobynumber() Function
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646PHP getservbyname() Function
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647PHP getservbyport() Function
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648PHP header_register_callback() Function
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649PHP header_register_callback() Function
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650PHP header() Function
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651PHP headers_list() Function
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652PHP headers_sent() Function
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653PHP http_response_code() Function
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654PHP inet_ntop() Function
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655PHP inet_pton() Function
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656PHP ip2long() Function
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657PHP long2ip() Function
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658PHP openlog() Function
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659PHP pfsockopen() Function
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660PHP setcookie() Function
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661PHP setrawcookie() Function
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662PHP socket_get_status() Function
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663PHP socket_set_blocking() Function
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664PHP socket_set_timeout() Function
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665PHP syslog() Function
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666PHP Output Control Functions
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667PHP Regular Expression Functions
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668PHP preg_filter() Function
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669PHP preg_grep() Function
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670PHP preg_last_error() Function
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671PHP preg_match() Function
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672PHP preg_match_all() Function
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673PHP preg_replace() Function
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674PHP preg_replace_callback() Function
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675PHP preg_replace_callback_array() Function
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676PHP preg_split() Function
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677PHP preg_quote() Function
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678PHP SimpleXML Functions
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679PHP __construct() Function
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680PHP __toString() Function
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681PHP addAttribute() Function
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682PHP addChild() Function
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683PHP asXML() Function
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684PHP attributes() Function
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685PHP children() Function
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686PHP count() Function
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687PHP getDocNamespaces() Function
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688PHP getName() Function
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689PHP getNamespaces() Function
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690PHP registerXPathNamespace() Function
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691PHP saveXML() Function
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692PHP simplexml_import_dom() Function
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693PHP simplexml_load_file() Function
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694PHP simplexml_load_string() Function
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695PHP xpath() Function
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696PHP current() Function
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697PHP getChildren() Function
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698PHP hasChildren() Function
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699PHP key() Function
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700PHP next() Function
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701PHP rewind() Function
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702PHP valid() Function
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703PHP Stream Functions
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704PHP String Functions
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705PHP addcslashes() Function
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706PHP addslashes() Function
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707PHP bin2hex() Function
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708PHP chop() Function
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709PHP chr() Function
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710PHP chunk_split() Function
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711PHP convert_cyr_string() Function
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712PHP convert_uudecode() Function
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713PHP convert_uuencode() Function
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714PHP count_chars() Function
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715PHP crc32() Function
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716PHP crypt() Function
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717PHP echo() Function
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718PHP explode() Function
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719PHP fprintf() Function
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720PHP get_html_translation_table() Function
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721PHP hebrev() Function
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722PHP hebrevc() Function
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723PHP hex2bin() Function
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724PHP html_entity_decode() Function
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725PHP htmlentities() Function
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726PHP htmlspecialchars_decode() Function
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727PHP htmlspecialchars() Function
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728PHP implode() Function
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729PHP join() Function
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730PHP lcfirst() Function
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731PHP levenshtein() Function
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732PHP localeconv() Function
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733PHP ltrim() Function
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734PHP md5() Function
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735PHP md5_file() Function
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736PHP metaphone() Function
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737PHP money_format() Function
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738PHP nl_langinfo() Function
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739PHP nl2br() Function
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740PHP number_format() Function
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741PHP ord() Function
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742PHP parse_str() Function
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743PHP printf() Function
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744PHP quoted_printable_decode() Function
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745PHP quoted_printable_encode() Function
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746PHP quotemeta() Function
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747PHP rtrim() Function
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748PHP setlocale() Function
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749PHP sha1() Function
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750PHP sha1_file() Function
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751PHP similar_text() Function
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752PHP soundex() Function
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753PHP sprintf() Function
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754PHP sscanf() Function
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755PHP str_contains() Function
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756PHP str_ends_with() Function
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757PHP str_getcsv() Function
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758PHP str_ireplace() Function
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759PHP str_pad() Function
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760PHP str_repeat() Function
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761PHP str_replace() Function
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762PHP str_rot13() Function
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763PHP str_shuffle() Function
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764PHP str_split() Function
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765PHP str_starts_with() Function
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766PHP str_word_count() Function
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767PHP strcasecmp() Function
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768PHP strchr() Function
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769PHP strcmp() Function
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770PHP strcoll() Function
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771PHP strcspn() Function
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772PHP strip_tags() Function
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773PHP stripcslashes() Function
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774PHP stripslashes() Function
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775PHP stripos() Function
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776PHP stristr() Function
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777PHP strlen() Function
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778PHP strnatcasecmp() Function
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779PHP strnatcmp() Function
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780PHP strncasecmp() Function
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781PHP strncmp() Function
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782PHP strpbrk() Function
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783PHP strpos() Function
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784PHP strrchr() Function
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785PHP strrev() Function
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786PHP strripos() Function
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787PHP strrpos() Function
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788PHP strspn() Function
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789PHP strstr() Function
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790PHP strtok() Function
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791PHP strtolower() Function
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792PHP strtoupper() Function
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793PHP strtr() Function
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794PHP substr() Function
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795PHP substr_compare() Function
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796PHP substr_count() Function
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797PHP substr_replace() Function
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798PHP trim() Function
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799PHP ucfirst() Function
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800PHP ucwords() Function
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801PHP vfprintf() Function
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802PHP vprintf() Function
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803PHP vsprintf() Function
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804PHP wordwrap() Function
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805PHP Variable Handling Functions
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806PHP boolval() Function
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807PHP debug_zval_dump() Function
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808PHP doubleval() Function
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809PHP is_countable() Function
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810PHP empty() Function
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811PHP floatval() Function
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812PHP get_defined_vars() Function
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813PHP get_resource_type() Function
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814PHP gettype() Function
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815PHP intval() Function
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816PHP is_array() Function
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817PHP is_bool() Function
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818PHP is_callable() Function
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819PHP is_double() Function
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820PHP is_float() Function
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821PHP is_int() Function
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822PHP is_integer() Function
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823PHP is_iterable() Function
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824PHP is_long() Function
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825PHP is_null() Function
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826PHP is_numeric() Function
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827PHP is_object() Function
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828PHP is_real() Function
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829PHP is_resource() Function
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830PHP is_scalar() Function
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831PHP is_string() Function
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832PHP isset() Function
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833PHP print_r() Function
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834PHP serialize() Function
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835PHP settype() Function
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836PHP strval() Function
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837PHP unserialize() Function
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838PHP unset() Function
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839PHP var_dump() Function
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840PHP var_export() Function
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841PHP XML Parser Functions
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842PHP utf8_decode() Function
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843PHP utf8_encode() Function
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844PHP xml_error_string() Function
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845PHP xml_get_current_byte_index() Function
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846PHP xml_get_current_column_number() Function
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847PHP xml_get_current_line_number() Function
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848PHP xml_get_error_code() Function
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849PHP xml_parse() Function
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850PHP xml_parse_into_struct() Function
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851PHP xml_parser_create_ns() Function
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852PHP xml_parser_create() Function
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853PHP xml_parser_free() Function
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854PHP xml_parser_get_option() Function
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855PHP xml_parser_set_option() Function
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856PHP xml_set_character_data_handler() Function
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857PHP xml_set_default_handler() Function
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858PHP xml_set_element_handler() Function
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859PHP xml_set_end_namespace_decl_handler() Function
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860PHP xml_set_external_entity_ref_handler() Function
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861PHP xml_set_notation_decl_handler() Function
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862PHP xml_set_object() Function
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863PHP xml_set_processing_instruction_handler() Function
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864PHP xml_set_start_namespace_decl_handler() Function
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865PHP xml_set_unparsed_entity_decl_handler() Function
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866PHP Zip Functions
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867PHP zip_close() Function
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868PHP zip_entry_close() Function
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869PHP zip_entry_compressedsize() Function
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870PHP zip_entry_compressionmethod() Function
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871PHP zip_entry_filesize() Function
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872PHP zip_entry_name() Function
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873PHP zip_entry_open() Function
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874PHP zip_entry_read() Function
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875PHP zip_open() Function
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876PHP zip_read() Function
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877PHP Timezones
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878PHP Exercises
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879PHP Error Handling
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880PHP FILTER_VALIDATE_BOOLEAN Filter
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881PHP FILTER_VALIDATE_EMAIL Filter
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882PHP FILTER_VALIDATE_FLOAT Filter
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883PHP FILTER_VALIDATE_INT Filter
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884PHP FILTER_VALIDATE_IP Filter
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885PHP FILTER_VALIDATE_REGEXP Filter
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886PHP FILTER_VALIDATE_URL Filter
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887PHP FILTER_SANITIZE_EMAIL Filter
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888PHP FILTER_SANITIZE_ENCODED Filter
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889PHP FILTER_SANITIZE_MAGIC_QUOTES Filter
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890PHP FILTER_SANITIZE_NUMBER_FLOAT Filter
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891PHP FILTER_SANITIZE_NUMBER_INT Filter
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892PHP FILTER_SANITIZE_SPECIAL_CHARS Filter
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893PHP FILTER_SANITIZE_STRING Filter
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894PHP FILTER_SANITIZE_STRIPPED Filter
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895PHP FILTER_SANITIZE_URL Filter
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896PHP FILTER_UNSAFE_RAW Filter
→
897PHP FILTER_CALLBACK Filter
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898PHP json_last_error() Function
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899PHP stream_copy_to stream() Function
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900PHP stream_filter_append() Function
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Certificate of Completion
Pass the exam with 70% or higher to earn your official, verifiable certificate.
Exam Duration30 Mins
Questions20-30
Passing Score70%
Why learn php?
- High demand in the job market
- Core technology for web development
- Foundation for advanced frameworks