/**
* Filter a request variable, containing a WHERE clause, from the globals
* if it is blacklisted.
*
* @param string $variable
*
* @example filter_request_where_clause('atkselector')
*/
public static function filter_request_where_clause($variable)
{
if (isset($_REQUEST[$variable])) {
$values = (array) $_REQUEST[$variable];
foreach ($values as $value) {
$checker = new self($value);
if (!$checker->isSafe()) {
Tools::atkhalt('Unsafe WHERE clause in REQUEST variable: ' . $variable, 'critical');
}
}
}
}
