★ wanayoo — archive 1999 http://www.php.net/manual/function.shm-remove.phpNouvelle recherche | Portail wanayoo

PHP Home Page
Manual Table of Contents
Up to Semaphore
Quick Reference
German version of this pageJapanese version of this pageItalian version of this pageFrench version of this pageHungarian version of this page
Semaphore
* sem_get
* sem_acquire
* sem_release
* shm_attach
* shm_detach
* shm_remove
* shm_put_var
* shm_get_var
* shm_remove_var
Manual: shm_remove
 View the source code for this pageSearch the site



Previous page
  shm_detach
  Updated
Sat, 12 Aug 2000
 shm_put_var 
 Next page

shm_remove

(PHP3 >= 3.0.6, PHP4 )

shm_remove -- Removes shared memory from Unix systems

Description

int shm_remove (int shm_identifier)

Removes shared memory from Unix systems. All data will be destroyed.


User Contributed Notes: shm_remove

cu@ulakbim.gov.tr
29-Dec-1999 08:30
Though it says **shm_identifier** in
<PRE>
int shm_remove(int shm_identifier);
</PRE>
and
<PRE>
shm_attach() returns an **id** that that can be used to access the System V...
</PRE>
a snippet like this:
<PRE>
$key = 1234;
$shm=shm_attach($key);
// do whatever...
shm_remove($shm);
</PRE>
produces an error like
Warning: 2(which is the value of $shm) is not a existing SysV shared memory key in /usr/cu/web/sema.php on line 44...
The documentation confused me a bit. I thought shm_remove would get the shm handle/id that returns from shm_attach, not the key given to shm_attach. So, use instead:
<PRE>
shm_remove($key);
</PRE>
which is what is intended indeed.

 About Notes

Previous page
  shm_detach
  Updated
Sat, 12 Aug 2000
 shm_put_var 
 Next page




Who's responsible for this?
Top of this page
Site
Hosting:

Located in
United States
Elements of this website are subject to copyright.
Questions about installing or using PHP should be directed to one of the mailing lists.
Only questions about the website should be directed to webmaster@php.net.