public static function fetchFromDbForEmail($email) { NewsletterSubscription::$staticErrors = array(); $sql = "SELECT * FROM bsi_newsletter_subscriptions WHERE email = '" . mysql_escape_string(strtolower(trim($email))) . "'"; $query = mysql_query($sql); if (!$query) { die("Error: " . mysql_error()); } if ($row = mysql_fetch_assoc($query)) { $newsletterSubscription = NewsletterSubscription::fetchFromParameters($row); return $newsletterSubscription; } else { array_push(NewsletterSubscription::$staticErrors, "No newsletter subscription with email: {$email} exists"); return null; } }