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PHP Manual
Appendices
History of PHP and Related Projects
History of PHP
History of PHP related projects
Books about PHP
Publications about PHP
Migrating from PHP 5.5.x to PHP 5.6.x
What has changed in PHP 5.6.x
Backward Incompatible Changes
New features
Deprecated features in PHP 5.6.x
Changed Functions
New Functions
Other changes to extensions
New Global Constants
Migrating from PHP 5.4.x to PHP 5.5.x
What has changed in PHP 5.5.x
Backward Incompatible Changes
New features
Deprecated features in PHP 5.5.x
Changed Functions
New Functions
New Classes and Interfaces
New Methods
Other changes to extensions
New Global Constants
Changes to INI file handling
Changes to PHP Internals
Migrating from PHP 5.3.x to PHP 5.4.x
What has changed in PHP 5.4.x
Backward Incompatible Changes
New features
Changes in SAPI modules
Deprecated features in PHP 5.4.x
Changed Functions
New Functions
New Classes and Interfaces
New Methods
Removed Extensions
Other changes to extensions
New Global Constants
Changes to INI file handling
Other changes
Migrating from PHP 5.2.x to PHP 5.3.x
What has changed in PHP 5.3.x
Backward Incompatible Changes
New features
Changes made to Windows support
Changes in SAPI modules
Deprecated features in PHP 5.3.x
Undeprecated features in PHP 5.3.x
New Parameters
New Functions
New stream wrappers
New stream filters
New Class Constants
New Methods
New Extensions
Removed Extensions
Other changes to extensions
New Classes
New Global Constants
Changes to INI file handling
Other changes
Migrating from PHP 5.1.x to PHP 5.2.x
What has changed in PHP 5.2.x
Backward Incompatible Changes
New Error Messages
Changes in PHP datetime support
New Parameters
New Functions
New Methods
Removed Extensions
New Extensions
New Classes
New Global Constants
New Class Constants
New INI Configuration Directives
Error Reporting
Other Enhancements
Migrating from PHP 5.0.x to PHP 5.1.x
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
Migrating from PHP 4 to PHP 5.0.x
What has changed in PHP 5.0.x
Backward Incompatible Changes
CLI and CGI
Migrating Configuration Files
New Functions
New Directives
Databases
New Object Model
Error Reporting
Classes and Objects (PHP 4)
class
extends
Constructors
Scope Resolution Operator (::)
parent
Serializing objects - objects in sessions
The magic functions __sleep and __wakeup
References inside the constructor
Comparing objects
Debugging in PHP
About debugging in PHP
Configure options
List of core configure options
php.ini directives
List of php.ini directives
List of php.ini sections
Description of core php.ini directives
Extension List/Categorization
Alphabetical
Membership
State
List of Function Aliases
List of Reserved Words
List of Keywords
Predefined Classes
Predefined Constants
List of Resource Types
List of Available Filters
String Filters
Conversion Filters
Compression Filters
Encryption Filters
List of Supported Socket Transports
Internet Domain: TCP, UDP, SSL, and TLS
Unix Domain: Unix and UDG
PHP type comparison tables
List of Parser Tokens
Userland Naming Guide
Global Namespace
Rules
Tips
About the manual
Formats
About user notes
How to read a function definition (prototype)
PHP versions documented in this manual
How to find more information about PHP
How to help improve the documentation
How we generate the formats
Translations
Creative Commons Attribution 3.0
Index listing
Function and Method listing
Example listing
Changelog
Miscellaneous Questions
History of PHP and Related Projects
PHP Manual
PHP Manual