php - A query or code solution for getting all rows where a column matches (x AND y AND z) -


Actually, we know that SQL has used these to change many or circumstances (X or Y or J) goes. But in this case I need a code solution to select a query, or all the rows (x and y and z). Something like this is experimenting. On your site, while searching for vehicles, more features give you fewer results, so they are not clearly using IN in their queries, a in fact will be a simplified version of my database .

Advertisement table: 

  ------------ - | ID | Title | --------------   
 Features table:  
  ------------ --- | ID | F_name | ---------------   
 Advertising Feature Table:  
  ----------- -------------------- | ID | advert_id | Feature_id | -------------------------------   
 Search filter for features I have an editor Join the left side of the FEATURES table and apply the following WHERE clause:  
  WHERE feature_id IN (x, y, z)   
  None  of the selected features but as I said, I need a query or code solution that only receives ads on  not all but not necessarily  Selected attributes a user The surveyor can choose from any of the facilities in any number of about 40 facilities. Where would it be "AND", which I already have a lot of.  
 How can I go about doing this? It is not SQL, it can be a code solution.  
 
 
 This is an example of a "set-in-set" query I used to collect and use these < I want to solve the code> the  section. In your case, you can do this:   advertsFeatures, select advert_id, wherein count = (*) = 3 in adver_text_id (x, y, z) in the feature_id;   
 Note that you need to convert  3  to the number of items in the  these  list. It also assumes that there is no duplicate in  AdvertsFeatures  data (otherwise, you use the  count (specific feature)  in the  ones  section).

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