php教程

getservbyport

(PHP 4, PHP 5, PHP 7)

getservbyportGet Internet service which corresponds to port and protocol

说明

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

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.

参见

User Contributed Notes

paland at stetson dot edu 29-Nov-2000 04:00
Example:
<?php $value = getservbyport(137, "udp"); ?>

The same goes for getservbyname()

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