shmop_read Read data from shared memory block


shmop_read

(PHP 4 >= 4.0.4, PHP 5)

shmop_readRead data from shared memory block

说明

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

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

参数

shmid

The shared memory block identifier created by shmop_open()

start

Offset from which to start reading

count

The number of bytes to read

返回值

Returns the data 或者在失败时返回 FALSE.

范例

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.

参见


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