> > But with that it doesnt difference between full and empty field… > > If the user want search on two posibilities on ten... > Maybe I'm not understanding what you're asking...
Or maybe you don't understand the query... Say your form has 10 checkboxes. If the users picks 3 out of ten boxes and clicks submit, the example I gave you will search your database looking for all records that match the 3 check boxes. if $houses equals $_POST['houses'] then $houses will be empty if the checkbox was not clicked and will not be included in the query.
