ngaranko/gist:4228441

## gistfile1.php
<?php
// page.php

// Question model
class Question
{
  private $id;
  private $name;
}

// Option model
class Option
{
  private $id;
  private $question_id;
  private $name;
  private $next_question_id;
}


$question_id = (!empty($_GET['id'])) ? $_GET['id'] : 1; // Select first Question if it's first

// Process POST if any
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
   $option = "select * from options_table where id = " . $_POST['option'];


  // Save temp result to session
  if (empty($_SESSION['results']))
      $_SESSION['results'] = array();

  $_SESSION['results'][] = array($question_id, $option->id);

  if (is_null($option->next_question_id)) {
    // Save end result to db
    "insert into results_table values("user_id", ". json_encode($_SESSION['results']
    print 'the end';
    die();
  } else {
    redirect('/page.php?id=' . $option->next_question_id);
  }

}

// View
$question = "select * from questions_table where id = $question_id";

$options = sprintf("SELECT * FROM options_table WHERE question_id = %s", $question_id);

?>
<html>
<form action="." method="POST">
<h1><?php print $question->name; ?></h1>
<?php
foreach ($options as $option) {
?>
<input type="radio" name="option" value="<?php print $option->id; ?>" /> <?php print $option->name; ?>
<?php
}
?>
<input type="submit" value="GO" />
</form>
	<?php
	// page.php

	// Question model
	class Question
	{
	private $id;
	private $name;
	}

	// Option model
	class Option
	{
	private $id;
	private $question_id;
	private $name;
	private $next_question_id;
	}


	$question_id = (!empty($_GET['id'])) ? $_GET['id'] : 1; // Select first Question if it's first

	// Process POST if any
	if ($_SERVER['REQUEST_METHOD'] == 'POST') {
	$option = "select * from options_table where id = " . $_POST['option'];


	// Save temp result to session
	if (empty($_SESSION['results']))
	$_SESSION['results'] = array();

	$_SESSION['results'][] = array($question_id, $option->id);

	if (is_null($option->next_question_id)) {
	// Save end result to db
	"insert into results_table values("user_id", ". json_encode($_SESSION['results']
	print 'the end';
	die();
	} else {
	redirect('/page.php?id=' . $option->next_question_id);
	}

	}

	// View
	$question = "select * from questions_table where id = $question_id";

	$options = sprintf("SELECT * FROM options_table WHERE question_id = %s", $question_id);

	?>
	<html>
	<form action="." method="POST">
	<h1><?php print $question->name; ?></h1>
	<?php
	foreach ($options as $option) {
	?>
	<input type="radio" name="option" value="<?php print $option->id; ?>" /> <?php print $option->name; ?>
	<?php
	}
	?>
	<input type="submit" value="GO" />
	</form>