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getservbyname	header

Network Functions	Last updated: Mon, 26 Oct 2026

getservbyport

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

getservbyport — Get Internet service which corresponds to port and protocol

Description

function 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

getservbyname	header

Network Functions	Last updated: Mon, 26 Oct 2026