getservbyname

(PHP 4 >= 4.0.0)

getservbyname --  Get port number associated with an Internet service and protocol

Description

int getservbyname ( string service, string protocol)

getservbyname() returns the Internet port which corresponds to service for the specified protocol as per /etc/services. protocol is either "tcp" or "udp" (in lowercase).

See also: getservbyport().