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    getservbyport

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

    getservbyport — Get Internet service which corresponds to port and protocol

    说明

    getservbyport(int $port, string $protocol): string|false

    getservbyport() returns the Internet service associated with port for the specified protocol as per /etc/services.

    参数

    port

    The port number.

    protocol

    protocol is either "tcp" or "udp" (in lowercase).

    返回值

    Returns the Internet service name as a string, 或者在失败时返回 false.

    参见

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    User Contributed Notes 1 note

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    paland at stetson dot edu
    24 years ago
    Example:
    <?php $value = getservbyport(137, "udp"); ?>

    The same goes for getservbyname()
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