shmop_read
shmop_read
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
shmop_read — Read data from shared memory block
Description
string shmop_read ( resource $shmid , int $start , int $count )
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
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_id, 0, 50
?>
This example will read 50 bytes from shared memory block and place the data inside $shm_data.
See Also
- shmop_write() - Write data into shared memory block
← shmop_open
shmop_size →
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Licensed under the Creative Commons Attribution License v3.0 or later.
