(PECL ssh2 >= 0.12) Changes file mode bool

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Clears the error on the socket or the last error code

(PECL ssh2 >= 0.9.0) Resolve the realpath of a provided path string

(PHP 4, PHP 5, PHP 7) Open connection to system logger

(PHP 4, PHP 5, PHP 7) Parse a URL and return its components

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

(PECL ssh2 >= 0.12) Authenticate over SSH using the ssh agent

(PECL ssh2 >= 0.9.0) Stat a file on a remote filesystem

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

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