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