posix_kill

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

    posix_kill — Send a signal to a process

    Description

    posix_kill(int $process_id, int $signal): bool

    Send the signal signal to the process with the process identifier process_id.

    Parameters

    process_id

    The process identifier.

    signal

    One of the PCNTL signals constants.

    Return Values

    Returns true on success or false on failure.

    See Also

    • The kill(2) manual page of the POSIX system, which contains additional information about negative process identifiers, the special pid 0, the special pid -1, and the signal number 0.

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