<?php
$dbhost = 'removed';
$dbuser = 'removed';
$dbpass = 'removed';
$conn = mysql_connect($dbhost, $dbuser, $dbpass) or die('Error connecting to mysql');
mysql_select_db("removed");

$query = mysql_query("SHOW TABLES");
if ($query)
{
    while($row=mysql_fetch_assoc($query))
    {
        if (substr(0,5) == 'phpbb_') echo "DROP TABLE ".$row['name'];
    }
}
?>