getprotobyname
(PHP 4 )
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 ( $get_prot == -1 ) { // if nothing found, returns -1 print 'Invalid Protocol'; } else { print 'Protocol #'.$get_prot; } ?>
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See also: getprotobynumber().