shmop_delete()
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
Delete shared memory block
说明
shmop_delete(resource $shmid): bool
shmop_delete() is used to delete a shared memory block.
参数
- $shmid
The shared memory block resource created by shmop_open()
返回值
成功时返回TRUE
,或者在失败时返回FALSE
。
更新日志
版本 | 说明 |
---|---|
7.0.0 | The type of$shmidhas been changed from int to resource. |
范例
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.