<?php
	/* this is the data im given, the number of sets will not always be 2,
		could be more, or could just be 1 */
	$set[1] = array(
		array('id'=>1,'title'=>'Red','inc'=>0),
		array('id'=>2,'title'=>'Blue','inc'=>2.5),
		array('id'=>3,'title'=>'White','inc'=>3),
	);

	$set[2] = array(
		array('id'=>4,'title'=>'Small','inc'=>0),
		array('id'=>5,'title'=>'Large','inc'=>.5),
	);

	// this the array i need to end up with
	$new_set = array(
		array ('title' => 'Red Small', 'inc'=>0, 'id'=>array('4','1') ),
		array ('title' => 'Red Large', 'inc'=>.5, 'id'=>array('5','1') ),

		array ('title' => 'Blue Small', 'inc'=>2.5, 'id'=>array('5','2') ),
		array ('title' => 'Blue Large', 'inc'=>3, 'id'=>array('5','2') ),

		array ('title' => 'White Small', 'inc'=>3, 'id'=>array('5','3') ),
		array ('title' => 'White Large', 'inc'=>3.5, 'id'=>array('5','3') ),
	);
?>