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PHP 8.4.0 RC2 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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Network
Introduction
Installing/Configuring
Requirements
Resource Types
Predefined Constants
Network Functions
checkdnsrr
— Check DNS records corresponding to a given Internet host name or IP address
closelog
— Close connection to system logger
dns_check_record
— Alias of checkdnsrr
dns_get_mx
— Alias of getmxrr
dns_get_record
— Fetch DNS Resource Records associated with a hostname
fsockopen
— Open Internet or Unix domain socket connection
gethostbyaddr
— Get the Internet host name corresponding to a given IP address
gethostbyname
— Get the IPv4 address corresponding to a given Internet host name
gethostbynamel
— Get a list of IPv4 addresses corresponding to a given Internet host name
gethostname
— Gets the host name
getmxrr
— Get MX records corresponding to a given Internet host name
getprotobyname
— Get protocol number associated with protocol name
getprotobynumber
— Get protocol name associated with protocol number
getservbyname
— Get port number associated with an Internet service and protocol
getservbyport
— Get Internet service which corresponds to port and protocol
header
— Send a raw HTTP header
header_register_callback
— Call a header function
header_remove
— Remove previously set headers
headers_list
— Returns a list of response headers sent (or ready to send)
headers_sent
— Checks if or where headers have been sent
http_response_code
— Get or Set the HTTP response code
inet_ntop
— Converts a packed internet address to a human readable representation
inet_pton
— Converts a human readable IP address to its packed in_addr representation
ip2long
— Converts a string containing an (IPv4) Internet Protocol dotted address into a long integer
long2ip
— Converts a long integer address into a string in (IPv4) Internet standard dotted format
net_get_interfaces
— Get network interfaces
openlog
— Open connection to system logger
pfsockopen
— Open persistent Internet or Unix domain socket connection
setcookie
— Send a cookie
setrawcookie
— Send a cookie without urlencoding the cookie value
socket_get_status
— Alias of stream_get_meta_data
socket_set_blocking
— Alias of stream_set_blocking
socket_set_timeout
— Alias of stream_set_timeout
syslog
— Generate a system log message
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