(PECL gearman >= 0.5.0) Get the last Gearman return code

(PHP 5 >= 5.5.0, PHP 7) Return string describing the given error code

(PECL event >= 1.2.6-beta) Moves all data from source buffer to the front of current buffer

(PECL event >= 1.2.6-beta) Connect buffer event's file descriptor to given address or UNIX socket

(PECL event >= 1.5.0) Scans the buffer for an occurrence of an end of line