How to select records from table1 which have table3 options in table2?

Let's say, I have three tables:

• table1: contains various records;
• table2: contains what records have what options;
• table3: contains options;

table2 contains foreign key of table1, and table3 - thus specifying which table1 record has witch table3 option. table1 records can have multiple table3 options;

I'm trying to select table1 records by specifying their options, I need to be able to select any option\any option combination and display all table1 records which have this option combination, it can have additional options, but i开发者_Go百科t must have the specified ones...

How would you write/build such a query?

note: I'm specifying what options to use from form..

imagine - table 1 contains products and table3 contains various details about products

User submits a form selecting check-boxes thus showing what details a product should have and I need to get all records which have these options ...

foreach($table1record as $detail){
  if($this->input->post('detail_{$detail['id']})){
    //option selected, continue building query ...
  }
}

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How about this?

 SELECT t1.*
 FROM table1 as t1
 INNER JOIN table2 as t2
 WHERE t2.SomeColumn IN (SELECT SomeOtherCol FROM table3);