php - Call to undefined function msg_get_queue() in Windows 7 -

i using windows 7, xampp version 1.8.1 , php version 5.4.7

here problematic code

 $queue = msg_get_queue(100379); 

i getting error:

call undefined function msg_get_queue()

can me this?

you need install semaphore extension before accessing functions

reference http://www.php.net/manual/en/sem.installation.php

installation

support functions not enabled default. enable system v semaphore support compile php option --enable-sysvsem . enable system v shared memory support compile php option --enable-sysvshm . enable system v messages support compile php option --enable-sysvmsg .