Shared Memory Functions
PHP Manual

shmop_size

Get size of shared memory block

Description

int shmop_size(Shmop $shmop)

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

Parameters

shmop

The shared memory block identifier created by shmop_open

Return Values

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

Changelog

Version Description
8.0.0 shmop expects a Shmop instance now; previously, a resource was expected.

Examples

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.