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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