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This document uses PHP Chinese website manual Release
(PHP 4, PHP 5)
posix_getpgid — Get process group id for job control
$pid
)
Returns the process group identifier of the process
pid
或者在失败时返回 FALSE
.
pid
The process id.
Returns the identifier, as an integer .
Example #1 Example use of posix_getpgid()
<?php
$pid = posix_getppid ();
echo posix_getpgid ( $pid ); //35
?>
Note:
This is a not POSIX function, but is common on BSD and System V systems. If the system does not support this function, then it will not be included at compile time. This may be checked with function_exists() .