array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'function.posix-getpgid.php', 1 => 'posix_getpgid', ), 'up' => array ( 0 => 'ref.posix.php', 1 => 'POSIX 函数', ), 'prev' => array ( 0 => 'function.posix-getlogin.php', 1 => 'posix_getlogin', ), 'next' => array ( 0 => 'function.posix-getpgrp.php', 1 => 'posix_getpgrp', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/posix/functions/posix-getpgid.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 4, PHP 5, PHP 7, PHP 8)
posix_getpgid — Get process group id for job control
Returns the process group identifier of the process
process_id
或者在失败时返回 false
.
process_id
The process id.
Returns the identifier, as an int.
示例 #1 Example use of posix_getpgid()
<?php
$pid = posix_getppid();
echo posix_getpgid($pid); //35
?>
注意:
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().