shmop_size

Description

int shmop_size ( int shmid)

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

shmop_size() takes the shmid, which is the shared memory block identifier created by shmop_open(), the function will return and int, which represents the number of bytes the shared memory block occupies.

例子 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.