(PHP 5 >= 5.1.0, PHP 7) Converts a human readable IP address to its packed in_addr representation

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Sends a message to a socket, whether it is connected or not

(PHP 5, PHP 7) Alias of

(PHP 4, PHP 5, PHP 7) Get the IPv4 address corresponding to a given Internet host name

(PECL ssh2 >= 0.9.0) Initialize SFTP subsystem

(PHP 5 >= 5.5.0, PHP 7) Calculate message buffer size

(PHP 4, PHP 5, PHP 7) Converts a string containing an (IPv4) Internet Protocol dotted address into a long integer

(PECL ssh2 >= 0.9.0) Delete a file bool ssh2_sftp_unlink

(PECL ssh2 >= 0.9.0) Return the target of a symbolic link

(PECL ssh2 >= 0.10) Remove an authorized publickey