sem_remove() removes the semaphore sem_identifier if it has been created by sem_get(), otherwise generates a warning.
Siker esetén TRUE értékkel tér vissza, ellenkező esetben FALSE értéket ad.
After removing the semaphore, it is no more accessible.
See also: sem_get(), sem_release() and sem_acquire().
Megjegyzés: This function does not work on Windows systems. It was added on PHP 4.1.0.