(PHP 4 >= 4.0.7, PHP 5)
sem_remove — Remove a semaphore
sem_remove() removes the given semaphore.
After removing the semaphore, it is no more accessible.
The semaphore identifier. Must have been created with sem_get(), otherwise a warning is generated.
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.