Help with a nested MySQL query!

[bigmattyh]

Okay, so I'm a pretty experienced MySQL programmer, but this problem has stumped me.

I'm getting some funky results when working with a nested MySQL query. It goes something like this:

$cars = $DB_site->query("SELECT * FROM cars");
while ($car = $DB_site->fetch_array($cars)) {
  $passengers= $DB_site->query("SELECT * FROM passengers WHERE car.id = '$car[id]'");
  while ($passenger= $DB_site->fetch_array($passengers)) {
      // Do stuff with data
      // Display the data
  }
}

I'm getting the list of cars to come out right. But the list of passengers for car #1 is getting returned for every car.

Has anyone encountered a similar problem to this, and does anyone have a solution?