Control output of looped items

gistfile1.txt

/*==========  In Pods Template, Use Function on Field Output  ==========*/

	{@legend_items,add_icons}

/*==========  Add to functions.php  ==========*/

function add_icons($items) {
	
	// loop through items
	foreach ($items as $item) :

		// Assign item values to new array
		$item_icons[] = '<span class="icon-' . $item['slug'] . '" title="' . $item['name'] . '" alt="' . $item['name'] . '"></span>';
	
	endforeach;

	// implode array to control output, defaults to comma seperated list
	$item_icons = implode(" ", $item_icons);

	return $item_icons;
}