call_user_func_array

function debug($var, $val)
    echo "***DEBUGGING\nVARIABLE: $var\nVALUE:";
    if (is_array($val) || is_object($val) || is_resource($val))
        print_r($val);
    else
        echo "\n$val\n";
    echo "***\n";
}

$c = mysql_connect();
$host = $HTTP_SERVER_VARS["SERVER_NAME"];

call_user_func_array ('debug', array("host", $host));
call_user_func_array ('debug', array("c", $c));
call_user_func_array ('debug', array("HTTP_POST_VARS", $HTTP_POST_VARS));