Simple PHP script to query AWS RDS

test.php

#!/usr/bin/php
<?php
echo '***** Fail over test starting up', PHP_EOL;
ini_set("default_socket_timeout", 2);

$dbh = new PDO(
    'mysql:host=hostname',
    'username',
    'password'
);

$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$dbh->setAttribute(PDO::ATTR_PERSISTENT, false);
$dbh->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);

$count = 0;
while (true) {
    echo '* running query ' . ++$count . ' times';

    $dbh->query('SELECT NOW() FROM dual');

    echo " - done", PHP_EOL;
}