sem_release

    (PHP 4, PHP 5, PHP 7, PHP 8)

    sem_release — Release a semaphore

    Description

    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.

    Parameters

    semaphore

    A Semaphore as returned by sem_get().

    Return Values

    Returns true on success or false on failure.

    Changelog

    Version Description
    8.0.0 semaphore expects a SysvSemaphore instance now; previously, a resource was expected.

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