Publisher rights notice — plain-text extract Source: https://www.php.net/manual/en/copyright.php Downloads Documentation Get Involved Help Search docs PHP 8.6.0 RC5 available for testing Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Error Handling Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Handling file uploads Using remote files Connection handling Persistent Database Connections 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 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 GUI Extensions 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 Getting Started » « Preface Preface Change language: English German Spanish French Italian Japanese Brazilian Portuguese Russian Turkish Ukrainian Chinese (Simplified) Other Copyright Copyright © 1997 - 2026 by the PHP Documentation Group. This material may be distributed only subject to the terms and conditions set forth in the Creative Commons Attribution 3.0 License or later. A copy of the Creative Commons Attribution 3.0 license is distributed with this manual. The latest version is presently available at » https://creativecommons.org/licenses/by/3.0/ . Found A Problem? Learn How To Improve This Page • Submit a Pull Request • Report a Bug + add a note User Contributed Notes There are no user contributed notes for this page. Preface Copyright Getting Started Installation and Configuration Language Reference Security Features Function Reference FAQ Appendices PHP is developed and maintained by a global community of contributors. The PHP Foundation helps fund this work. If PHP is part of your business or projects, consider sponsoring the Foundation. Linkedin @php@fosstodon.org GitHub Donate PHP My PHP.net Downloads Contact Other PHP.net sites Learn Documentation Get Involved Help The PHP Foundation About the Foundation Sponsor Contact Legal Privacy policy Copyright © 2001-2026 The PHP Documentation Group. ↑ and ↓ to navigate • Enter to select • Esc to close • / to open Press Enter without selection to search using Google