Remove a semaphore sem_release shm_attach Semaphore Functions PHP Manual sem_remove (PHP 4 >= 4.0.7, PHP 5)sem_remove — Remove a semaphore Description bool sem_remove ( resource $sem_identifier ) sem_remove() removes the given semaphore. After removing the semaphore, it is no more accessible. Parameters sem_identifier A semaphore resource identifier as returned by sem_get(). Return Values Returns TRUE on success or FALSE on failure. See Also sem_get() sem_release() sem_acquire() sem_release shm_attach Semaphore Functions PHP Manual