Combination of field search using PHP & MYSQL

Question

I am working on an assignment using PHP & MYSQL.

one of the tasks is to search on any combination of the fields. That includes Dropdown boxes populated from the

Answer 1

Why not evaluate your string with each column (this is a guide only, I'm not building your PHP code there:

SELECT 
  * 
FROM 
  table
WHERE 
  (ID = $id OR $id = 'showAll')
  AND (SPORT = $sport OR $sport = 'showAll')
  AND (COUNTRY = $country OR $country = 'showAll')
  AND (GENDER = $gender OR $gender = 'showAll')
  AND (FIRSTNAME = $firstname OR $firstname = 'showAll')

Just need to make sure you NVL the variables to an appropriate value (whether it be int or string)