php - Insert into table and return the Auto Increment Id Assigned -

i inserting information cars, in 3 different instances, in first goes auto containing 4 rows basic year make model , price , unique id set automatically mysql. great. how return id set instance can use insert other 2 instances of pictures , attributes?

    $toauto = "insert auto(year, make, model, mileage, price)          values (?, ?, ?, ?, ?)";  /*               //sql inserting auto         $toattributes = "insert attributes(auto_id,         bodystyle, enginesize, cyl, hp, fuel, transmission, shifts, od, cd, mp3, dvd,         gps, sound_system, sradio, tachometer, clock, trip, eweather, digitalboard, rwd,         fwd, awd, fxf, cruisecontrol, tiltsteering, ac, removabletop, keyless, airbags,         alloy, trunkantitrap, ewindows, emirrors, eseat, elocks, antitheft, leadheadlights         )          values ($autoid, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,         ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";         //sql insert pictures         $topictures = "insert auto(year, make, model, mileage, price)          values (?, ?, ?, ?, ?)"; */               print_r($auto);         print_r($paths);         //$dbh->setattribute( pdo::attr_errmode, pdo::errmode_exception );         //inserting auto         $sth = $dbh->prepare($toauto);         $final = array_merge(array_values($auto));         $sth->execute($final); /*         //inserting attributes         $sth = $dbh->prepare($toauto);         $final = array_merge(array_values($auto));         $sth->execute($final);         //inserting pictures         $sth = $dbh->prepare($toauto);         $final = array_merge(array_values($auto));         $sth->execute($final); */ 

the row name auto_id

assuming using pdo, call $dbh->lastinsertid() auto increment id last insert operation.