Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /homepages/6/d781379565/htdocs/shoppingfriends/index.php:24 Stack trace: #0 /homepages/6/d781379565/htdocs/shoppingfriends/index.php(24): in_array() #1 {main} thrown in /homepages/6/d781379565/htdocs/shoppingfriends/index.php on line 24