Fatal error: Uncaught ArgumentCountError: mysqli_close() expects exactly 1 argument, 0 given in /homepages/16/d404520744/htdocs/php/portrait.php:16 Stack trace: #0 /homepages/16/d404520744/htdocs/php/portrait.php(16): mysqli_close() #1 /homepages/16/d404520744/htdocs/index.php(31): include('/homepages/16/d...') #2 {main} thrown in /homepages/16/d404520744/htdocs/php/portrait.php on line 16