PHP Manual

• Escaping from HTML
• Instruction separation
• Comments
• Introduction
• Booleans
• Integers
• Floating point numbers
• Strings
• Arrays
• Objects
• Resources
• NULL
• Pseudo-types and variables used in this documentation
• Type Juggling
• Basics
• Predefined Variables
• Variable scope
• Variable variables
• Variables From External Sources
• Syntax
• Magic constants
• Expressions
• Operator Precedence
• Arithmetic Operators
• Assignment Operators
• Bitwise Operators
• Comparison Operators
• Error Control Operators
• Execution Operators
• Incrementing/Decrementing Operators
• Logical Operators
• String Operators
• Array Operators
• Type Operators
• Introduction
• if
• else
• elseif/else if
• Alternative syntax for control structures
• while
• do-while
• for
• foreach
• break
• continue
• switch
• declare
• return
• require
• include
• require_once
• include_once
• goto
• User-defined functions
• Function arguments
• Returning values
• Variable functions
• Internal (built-in) functions
• Anonymous functions
• Introduction
• The Basics
• Properties
• Class Constants
• Autoloading Classes
• Constructors and Destructors
• Visibility
• Object Inheritance
• Scope Resolution Operator (::)
• Static Keyword
• Class Abstraction
• Object Interfaces
• Overloading
• Object Iteration
• Patterns
• Magic Methods
• Final Keyword
• Object Cloning
• Comparing Objects
• Type Hinting
• Late Static Bindings
• Objects and references
• Object Serialization
• OOP Changelog
• Namespaces overview
• Defining namespaces
• Declaring sub-namespaces
• Defining multiple namespaces in the same file
• Using namespaces: Basics
• Namespaces and dynamic language features
• namespace keyword and __NAMESPACE__ constant
• Using namespaces: Aliasing/Importing
• Global space
• Using namespaces: fallback to global function/constant
• Name resolution rules
• FAQ: things you need to know about namespaces
• Extending Exceptions
• What References Are
• What References Do
• What References Are Not
• Passing by Reference
• Returning References
• Unsetting References
• Spotting References
• Superglobals
• $GLOBALS
• $_SERVER
• $_GET
• $_POST
• $_FILES
• $_REQUEST
• $_SESSION
• $_ENV
• $_COOKIE
• $php_errormsg
• $HTTP_RAW_POST_DATA
• $http_response_header
• $argc
• $argv
• Exception
• ErrorException
• Traversable
• Iterator
• IteratorAggregate
• ArrayAccess
• Serializable
• Socket context options
• HTTP context options
• FTP context options
• SSL context options
• CURL context options
• Phar context options
• Context parameters
• Filesystem
• HTTP and HTTPS
• FTP and FTPS
• PHP input/output
• zlib, bzip2 and zip
• data://
• Glob
• phar://
• ssh2://
• rar://
• ogg://
• expect://