Руководство по PHP
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# getservbyport

(PHP 4, PHP 5)

getservbyport -- Get Internet service which corresponds to port and protocol

## Description

string getservbyport ( int port, string protocol )

getservbyport() returns the Internet service associated with `port` for the specified `protocol` as per `/etc/services`. `protocol` is either `"tcp"` or `"udp"` (in lowercase).

See also: getservbyname().

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