(PHP 4, PHP 5, PHP 7, PHP 8)
sem_release — Release a semaphore
sem_release(SysvSemaphore $semaphore): bool
sem_release() releases the semaphore if it is currently acquired by the calling process, otherwise a warning is generated.
After releasing the semaphore, sem_acquire() may be called to re-acquire it.
semaphoreA Semaphore as returned by sem_get().
| Version | Description |
|---|---|
| 8.0.0 | semaphore expects a SysvSemaphore instance now; previously, a resource was expected. |
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https://www.php.net/manual/en/function.sem-release.php