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PHP 8.4.0 RC4 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
Errors
Exceptions
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
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PHP Manual
Function Reference
Variable and Type Related Extensions
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Class/Object Information
Introduction
Examples
Classes/Object Functions
__autoload
— Attempt to load undefined class
class_alias
— Creates an alias for a class
class_exists
— Checks if the class has been defined
enum_exists
— Checks if the enum has been defined
get_called_class
— The "Late Static Binding" class name
get_class
— Returns the name of the class of an object
get_class_methods
— Gets the class methods' names
get_class_vars
— Get the default properties of the class
get_declared_classes
— Returns an array with the name of the defined classes
get_declared_interfaces
— Returns an array of all declared interfaces
get_declared_traits
— Returns an array of all declared traits
get_mangled_object_vars
— Returns an array of mangled object properties
get_object_vars
— Gets the properties of the given object
get_parent_class
— Retrieves the parent class name for object or class
interface_exists
— Checks if the interface has been defined
is_a
— Checks whether the object is of a given type or subtype
is_subclass_of
— Checks if the object has this class as one of its parents or implements it
method_exists
— Checks if the class method exists
property_exists
— Checks if the object or class has a property
trait_exists
— Checks if the trait exists
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