(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
shmop_delete — Delete shared memory block
shmop_delete() marks a shared memory block for deletion. The block is only destroyed once every process has detached from it.
shmopThe shared memory block resource created by shmop_open()
If the block cannot be marked for deletion, for example because the current
user does not own it, an E_WARNING is emitted.
| Version | Description |
|---|---|
| 8.0.0 |
shmop expects a Shmop
instance now; previously, a resource was expected.
|
Example #1 Deleting shared memory block
<?php
shmop_delete($shm_id);
?>
This example will delete shared memory block identified by
$shm_id.
A helpful hint, although when using shmop on windows (yes you can use shmop on windows in IIS or Apache when used as isapi/module) you can delete a segment and later open a new segment with the SAME KEY in the same script no problem, YOU CANNOT IN LINUX/UNIX - the segment will still exist - it's not immediately deleted - but will be marked for deletion and you'll get errors when trying to create the new one - just a reminder.