shmop_size

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

shmop_size — Get size of shared memory block

説明

shmop_size ( resource $shmid ) : int

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

パラメータ

shmid

The shared memory block identifier created by shmop_open()

返り値

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

変更履歴

バージョン 説明
7.0.0 The type of shmid has been changed from int to resource.

例

例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.