PHP Manual
Appendices
History of PHP and Related Projects
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
Classes and Objects (PHP 4)
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
Other Enhancements
Key PHP 5.1.x features
Appendices
PHP Manual
Migrating from PHP 5.0.x to PHP 5.1.x
Table of Contents
Key PHP 5.1.x features
Changes in reference handling
Reading []
Integer values in function parameters
Class and object changes
Extensions
Date/time support
Changes in database support
Checking for E_STRICT
See also the migration guides for PHP versions
5.0.x
,
5.2.x
,
5.3.x
,
5.4.x
and
5.5.x
.