Fatal error: Uncaught ArgumentCountError: Too few arguments to function clean_user_input(), 1 passed in /home/iphone/public_html/collection-iphone5.php on line 5 and exactly 2 expected in /home/iphone/public_html/includes/dbconnect.php:17 Stack trace: #0 /home/iphone/public_html/collection-iphone5.php(5): clean_user_input('28') #1 {main} thrown in /home/iphone/public_html/includes/dbconnect.php on line 17