shmop_read
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
shmop_read — Read data from shared memory block
Description
shmop_read() will read a string from shared memory block.
Parameters
-
shmop -
The shared memory block identifier created by shmop_open()
-
offset -
Offset from which to start reading
-
size -
The number of bytes to read.
0readsshmop_size($shmid) - $startbytes.
Return Values
Returns the data or false on failure.
Changelog
| Version | Description |
|---|---|
| 8.0.0 |
shmop expects a Shmop
instance now; previously, a resource was expected.
|
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.
Here you can write a comment
There are no comments available yet.
