(PHP 4, PHP 5)
getprotobyname — Get protocol number associated with protocol name
getprotobyname() returns the protocol number associated with the protocol name as per /etc/protocols.
The protocol name.
Returns the protocol number or -1 if the protocol is not found.
Example #1 getprotobyname() example
<?php$protocol = 'tcp';$get_prot = getprotobyname($protocol);if ($get_prot == -1) { echo 'Invalid Protocol';} else { echo 'Protocol #' . $get_prot;}?>
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