PHP Manual
Appendices
History of PHP and Related Projects
Migrating from PHP 7.0.x to PHP 7.1.x
Migrating from PHP 5.6.x to PHP 7.0.x
Migrating from PHP 5.5.x to PHP 5.6.x
Migrating from PHP 5.4.x to PHP 5.5.x
Migrating from PHP 5.3.x to PHP 5.4.x
Migrating from PHP 5.2.x to PHP 5.3.x
Migrating from PHP 5.1.x to PHP 5.2.x
Migrating from PHP 5.0.x to PHP 5.1.x
Migrating from PHP 4 to PHP 5.0.x
Debugging in PHP
Configure options
php.ini directives
Extension List/Categorization
List of Function Aliases
List of Reserved Words
List of Resource Types
List of Available Filters
List of Supported Socket Transports
PHP type comparison tables
List of Parser Tokens
Userland Naming Guide
About the manual
Creative Commons Attribution 3.0
Index listing
Changelog
Publications about PHP
New features
Appendices
PHP Manual
Migrating from PHP 7.0.x to PHP 7.1.x
Table of Contents
New features
New functions
New global constants
Backward incompatible changes
Deprecated features in PHP 7.1.x
Changed functions
Other changes
Windows Support