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This document uses PHP Chinese website manual Release
(PHP 4 >= 4.0.2, PHP 5)
posix_setegid — Set the effective GID of the current process
$gid
)Set the effective group ID of the current process. This is a privileged function and needs appropriate privileges (usually root) on the system to be able to perform this function.
gid
The group id.
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Example #1 posix_setegid() example
This example will print out the effective group id, once changed.
<?php
echo 'My real group id is ' . posix_getgid (); //20
posix_setegid ( 40 );
echo 'My real group id is ' . posix_getgid (); //20
echo 'My effective group id is ' . posix_getegid (); //40
?>