PHP: Hypertext Preprocessor (original) (raw)

shmop_close

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

shmop_close — Close shared memory block

Warning

This function has been_DEPRECATED_ as of PHP 8.0.0. Relying on this function is highly discouraged.

Description

Note:

This function has no effect. Prior to PHP 8.0.0, this function was used to close the resource.

shmop_close() is used to close a shared memory block.

Parameters

shmop

The shared memory block resource created by shmop_open()

Return Values

No value is returned.

Changelog

Examples

Example #1 Closing shared memory block

<?php shmop_close($shm_id); ?>

This example will close shared memory block identified by $shm_id.

Found A Problem?

slavapl at mailandnews dot com ¶

24 years ago

`shmop_close doesn't delete the memory segment, it just detaches from it.

If you have created the block and need to delete it you must call shmop_delete BEFORE calling shmop_close (for reasons outlined in shmop_delete help page notes).

`

shortboi ¶

3 years ago

`As explained on this page, PHP 8.0.0 expects a Shmop instance instead of a resource. According to bug #81098 this change means that the Shmop closes itself when the script completes so there is no need to close it with shmop_close.

Using function_exists('shmop_close') will return true but calling shmop_close will throw a deprecation error.

The documentation explains the change in 8.0.0 expects the expected argument changed without mentioning it'll just throw a deprecation error.

`