getprotobyname

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

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

Example 644. getprotobyname() example

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

See also: getprotobynumber().

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