Error
Expected numeric value, got [] of type NULL go back to try again
File: /home/surreyh/public_html/classes/course.php (Line: 52) Function: check_input_int File: /home/surreyh/public_html/book-cookery-course.php (Line: 25) Function: getByID
Expected numeric value, got [] of type NULL go back to try again
File: /home/surreyh/public_html/classes/course.php (Line: 52) Function: check_input_int File: /home/surreyh/public_html/book-cookery-course.php (Line: 25) Function: getByID