posix_setegid Set the effective GID of the current process php函数


posix_setegid

(PHP 4 >= 4.0.2, PHP 5)

posix_setegidSet the effective GID of the current process

说明

bool posix_setegid ( int $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.

参数

gid

The group id.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE.

范例

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
?>

参见

  • posix_getgrgid() - Return info about a group by group id
  • posix_getgid() - Return the real group ID of the current process
  • posix_setgid() - Set the GID of the current process



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