PHP/Network/getprotobynumber

Using getprotobynumber()

 
<?php
    $proto_num = SOL_TCP;
    $proto = getprotobynumber($proto_num);
    if($proto === false) {
        die("Could not find protocol with ID $proto_num\n");
    } else {
        echo "The protocol with ID $proto_num is "$proto"\n";
    }
?>