(PHP 5, PHP 7) Add a normal cURL handle to a cURL multi handle

(PHP 4, PHP 5, PHP 7) Downloads a file from the FTP server and saves to an open file

(PHP 5 >= 5.4.0, PHP 7) Fetch an SNMP object

(PHP 4 >= 4.0.1, PECL yaz >= 0.9.0) Returns error description

(PECL memcached >= 0.1.5) Get server pool version info

(PECL event >= 1.2.6-beta) Returns event method in use

(PECL mqseries >= 0.10.0) Returns the error message corresponding to a result code (MQRC).

(PECL sam >= 0.1.0) Creates a new connection to a Messaging Server

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Get information regarding a specific transfer

(PECL rrd >= 0.9.0) Gets the timestamp of the first sample from rrd file.