(PHP 4 >= 4.1.0, PHP 5, PHP 7) Receives data from a connected socket

(PECL ssh2 >= 0.9.0) Send a file via SCP bool

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Sends data to a connected socket

(PECL ssh2 >= 0.10) Initialize Publickey subsystem

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Return a string describing a socket error

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Flush (send) the output buffer

(PECL geoip >= 1.0.1) Returns detailed information about all GeoIP database types

(PECL ssh2 >= 0.9.0) Connect to an SSH server

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Shuts down a socket for receiving, sending, or both

(PECL geoip >= 1.0.4) Returns the region name for some country and region code combo