<?php
$arr=array("futbol"=>array('conmebol','concacaf'=>'Mexico', 'uefa'=>(array('españa'=>'real madrid', 'francia'))));

foreach($arr as $federacion=>$valor){
	foreach($valor as $pais=>$club){
		if(is_array($club)){
		foreach($club as $equipo => $i);
		} else echo $club;
	}
}

?>

conmebolMexico