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# getprotobyname

(PHP 4, PHP 5)

getprotobyname -- Get protocol number associated with protocol name

## Description

int getprotobyname ( string name )

getprotobyname() returns the protocol number associated with the protocol name as per `/etc/protocols`.

Example 1. getprotobyname() example

`<?php $protocol = 'tcp'; $get_prot = getprotobyname($protocol); if ($get_prot == -1) { // if nothing found, returns -1 echo 'Invalid Protocol'; } else { echo 'Protocol #' . $get_prot; } ?>`

See also: getprotobynumber().

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