getservbyport

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

    getservbyport — Get Internet service which corresponds to port and protocol

    Description

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

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

    Parameters

    port

    The port number.

    protocol

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

    Return Values

    Returns the Internet service name as a string, or false on failure.

    See Also

    • getservbyname() - Get port number associated with an Internet service and protocol

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