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PHP5中文手册

shmop_size

(PHP 4 >= 4.0.4, PHP 5)

shmop_size — Get size of shared memory block

说明

int shmop_size ( int $shmid )

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

参数

shmid

The shared memory block identifier created by shmop_open()

返回值

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

范例

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.