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PHP Manual [shmop_read]

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PHP Manual || Shared Memory Functions

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

shmop_readRead data from shared memory block

Description

shmop_read ( resource $shmid , int $start , int $count ) : string

shmop_read() will read a string from shared memory block.

Parameters

shmid

The shared memory block identifier created by shmop_open()

start

Offset from which to start reading

count

The number of bytes to read. 0 reads shmop_size($shmid) - $start bytes.

Return Values

Returns the data or FALSE on failure.

Changelog

Version Description
7.0.0 The type of shmid has been changed from int to resource.

Examples

Example #1 Reading shared memory block

<?php
$shm_data 
shmop_read($shm_id050);
?>

This example will read 50 bytes from shared memory block and place the data inside $shm_data.

See Also



PHP Manual || Shared Memory Functions