<?php

$db_host = '127.0.0.1';
$db_user = 'root';
$db_password = 'root';
$db_port = '3306';

$db_conn = mysql_connect($db_host.':'.$db_port, $db_user, $db_password);

$db_result = mysql_query('select version() as version;', $db_conn);

$row = mysql_fetch_array($db_result, MYSQL_ASSOC); // this does NOT work
// $row = mysql_fetch_assoc($db_result); // this works

printf("mysql version: %s\n", $row['version']);

mysql_free_result($db_result);

mysql_close($db_conn);

?>