shmop_delete() is used to delete a shared memory block.
shmop_delete() takes the shmid, which is the shared memory
block identifier created by shmop_open(). On success 1 is
returned, on failure 0 is returned.
Example 1. Deleting shared memory block
<?php shmop_delete($shm_id); ?>
This example will delete shared memory block identified by
$shm_id.
