posix_setegid
PHP 4 >= 4.0.2, PHP 5, PHP 7, PHP 8
posix_setegid - Set the effective GID of the current process
Manual
posix_setegid(
int$group_id ): bool
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.
Parameters
- group_id
-
The group id.
Return Values
Returns true on success or false on failure.