[Plugin: http:BL WordPress Plugin] Needs array cast to suppress warning with PHP 5.2

At line 52 of httpbl.php you need to explicitly cast $results as an (array) to prevent an ugly PHP warning at the top of each page which says:

Warning: Invalid argument supplied for foreach() in /var/www/htdocs/wp-content/plugins/httpbl/httpbl.php on line 52

In other words, it becomes:

foreach ((array)$results as $row) {