PHP: Documentation

[/] Downloads Documentation Get Involved Help PHP 7.1.0 Release Candidate 1 Released Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Errors Exceptions Generators References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Filesystem Security Database Security Error Reporting Using Register Globals User Submitted Data Magic Quotes Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Safe Mode Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Credit Card Processing Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search (current page) / Focus search box Documentation The PHP Manual is available online in a selection of languages. Please pick a language from the list below. More information about php.net URL shortcuts by visiting our URL howto page . Note, that many languages are just under translation, and the untranslated parts are still in English. Also some translated parts might be outdated. The translation teams are open to contributions. Documentation for PHP 4 has been removed from the manual, but there is archived version still available. For more informations, please read Documentation for PHP 4 . Formats Destinations View Online English , Brazilian Portuguese , Chinese (Simplified) , French , German , Japanese , Korean , Romanian , Russian , Spanish , Turkish Downloads For downloadable formats, please visit our documentation downloads page. More documentation If you are interested in how the documentation is edited and translated, you should read the Documentation HOWTO . PHP-GTK related documentation is hosted on the PHP-GTK website. Documentation of PEAR and the various packages can be found on a separate server. You can still read a copy of the original PHP/FI 2.0 Manual on our site, which we only host for historical purposes. The same applies to the PHP 3 Manual , and the PHP 4 Manual . Copyright © 2001-2016 The PHP Group My PHP.net Contact Other PHP.net sites Mirror sites Privacy policy