friendship ended with social-app. php is my new best friend

missing var

Changed files
+1
lib
+1
lib/maria-db.php
···
$db = mysqli_init();
$db->real_connect(DB_HOST, DB_USERNAME, DB_PASS);
$db->real_query('use '.DB_NAME.';');
+
$expires = strtotime('now') + 60*60*4;
if (requestFeedCache($atUri)) {
$db->query('update feed_cache where at_uri="'.$db->real_escape_string($atUri).'" set title="'.$db->real_escape_string($title).'", description="'.$db->real_escape_string($description).'", avatar="'.$db->real_escape_string($avatar).'", creator_did="'.$db->real_escape_string($creator_did).'", expires='.$expires);
}