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getprotobyname

Get protocol number associated with protocol name (PHP 4, PHP 5)
int getprotobyname ( string name )

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

Parameters

name

The protocol name.

Return Values

Returns the protocol number or -1 if the protocol is not found.

Examples

Example 1598. getprotobyname() example

<?php
$protocol
= 'tcp';
$get_prot = getprotobyname($protocol);
if (
$get_prot == -1) {
   echo
'Invalid Protocol';
} else {
   echo
'Protocol #' . $get_prot;
}
?>