<?php
function unset_last_array_element($array){
	$array = array_reverse($array);
	unset($array[0]);
	$array = array_reverse($array);
	return $array;
}

function loop($array, $key_array = array(), $count = false){

	foreach($array as $key => $value){

		if(is_object($value)) $value = (array)$value;

		if(is_array($key_array)) if(end($key_array) != $key) $key_array[] = $key;

		if(is_array($value)){

			loop($value, $key_array);

		}else{

			if(trim($value) != ""){

				if(is_array($key_array)) foreach($key_array as $key_name) print $key_name." - ";

				print ": ".trim($value)."<br>";

			}

			$key_array = unset_last_array_element($key_array);

		}

	}

	return true;

}

$array = array(
	'key1' => 'Value1',
	'key2' => 'Value2',
	'key3_multi' => array('key1' => 'Value1', 'key2' => 'Value2'),
	'key4_multi' => array('key1' => 'Value1', 'key2' => 'Value2', 'key3_multi' => array('key1' => 'Value1', 'key2' => 'Value2'))
	);

loop($array);

?>


Outputs:

key1 - : Value1
key2 - : Value2
key3_multi - key1 - : Value1
key3_multi - key2 - : Value2
key3_multi - key4_multi - key1 - : Value1
key3_multi - key4_multi - key2 - : Value2
key3_multi - key4_multi - key3_multi - key1 - : Value1
key3_multi - key4_multi - key3_multi - key2 - : Value2

Want:

key1 - : Value1
key2 - : Value2
key3_multi - key1 - : Value1
key3_multi - key2 - : Value2
key4_multi - key1 - : Value1
key4_multi - key2 - : Value2
key4_multi - key3_multi - key1 - : Value1
key4_multi - key3_multi - key2 - : Value2