shmop_write
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
shmop_write — Write data into shared memory block
Description
shmop_write() will write a string into shared memory block.
Parameters
-
shmop -
The shared memory block identifier created by shmop_open()
-
data -
A string to write into shared memory block
-
offset -
Specifies where to start writing data inside the shared memory segment.
Return Values
The size of the written data.
Changelog
| Version | Description |
|---|---|
| 8.0.0 |
Prior to PHP 8.0.0, false was returned on failure.
|
| 8.0.0 |
shmop expects a Shmop
instance now; previously, a resource was expected.
|
Examples
Example #1 Writing to shared memory block
<?php
$shm_bytes_written = shmop_write($shm_id, $my_string, 0);
?>
This example will write data inside $my_string into
shared memory block, $shm_bytes_written will contain
the number of bytes written.
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