shmop_size

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

shmop_size — Get size of shared memory block

int shmop_size ( resource $shmid )

shmop_size() is used to get the size, in bytes of the shared memory block.

Returns an int, which represents the number of bytes the shared memory block occupies.

版本	说明
7.0.0	The type of `shmid` has been changed from int to resource.

Example #1 Getting the size of the shared memory block


<?php
$shm_size = shmop_size($shm_id);
?>

This example will put the size of shared memory block identified by $shm_id into $shm_size.