(PHP 4, PHP 5, PHP 7) Get Internet service which corresponds to port and protocol

(PHP 4, PHP 5, PHP 7) Converts an long integer address into a string in (IPv4) Internet standard dotted format

(PHP 5, PHP 7) Alias of

(PHP 4, PHP 5, PHP 7) Open Internet or Unix domain socket connection

(PHP 4, PHP 5, PHP 7) Alias of

(PHP 4, PHP 5, PHP 7) Get a list of IPv4 addresses corresponding to a given Internet host name

(PHP 4, PHP 5, PHP 7) Open persistent Internet or Unix domain socket connection

(PHP 4, PHP 5, PHP 7) Generate a system log message

(PHP 5, PHP 7) Returns a list of response headers sent (or ready to send)

(PHP 4, PHP 5, PHP 7) Get the Internet host name corresponding to a given IP address