sem_acquire() blocks (if necessary) until the
semaphore can be acquired. A process attempting to acquire a
semaphore which it has already acquired will block forever
if acquiring the semaphore would cause its maximum number
of semaphore to be exceeded.
sem_identifier is a semaphore ressource,
obtained from sem_get().
Returns TRUE on success or FALSE on failure.
After processing a request, any semaphores acquired by the
process but not explicitly released will be released automatically
and a warning will be generated.
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Php sem acquire syntax tutorial
php tutorial guide and code design are for easy learning and programming. The code practice section provided at the top is for practising of this syntax. Use the code section up to practice your php programming online. Learning php is very easy, all you need is to use the examples on this site and practice them to perfect your skills.