Fatal error: Uncaught TypeError: join(): Argument #2 ($array) must be of type ?array, bool given in /home/class/pg/js/prj/weather/we.php:14 Stack trace: #0 /home/class/pg/js/prj/weather/we.php(14): join('', false) #1 {main} thrown in /home/class/pg/js/prj/weather/we.php on line 14