I have an object that loads an instance of another object in a method.

$survey = new survey;

$question = new question($survey);

$question->load($question_id);

class question {

public function __construct(&$survey) {
$this->survey = $survey; }

public function load ($id)
{   
    // now a question is loaded
    // want to load the survey that this question is in
    $this->survey->load($this->get('survey_id')); // ** survey_id is a field in the questions table
    // now $this->survey object has all the info about the survey this question is in
}   

private function get($name)
{   
    // returns $name, if isset() from array that load() sets
}    }

This is frying my brain, though, because it seems like $survey should come into $response already being a complete object. But, how do I do that, if I don't know what survey_id to load until I'm in the object? I am revamping a site and the most complex part is littered with this issue. TIA - Hans.