<pre>
<?php
$data = array(
			array('volume' => 67, 'edition' => 2),
			array('volume' => 86, 'edition' => 1),
			array('volume' => 85, 'edition' => 6),
			array('volume' => 98, 'edition' => 2),
			array('volume' => 86, 'edition' => 6),
			array('volume' => 67, 'edition' => array(
				array('volume' => 67, 'edition' => 2),
				array('volume' => 86, 'edition' => 1),
				array('volume' => 85, 'edition' => 6),
				array('volume' => 98, 'edition' => 2),
				array('volume' => 86, 'edition' => 6),
				array('volume' => 67, 'edition' => array(
					array('volume' => 67, 'edition' => 2),
					array('volume' => 86, 'edition' => 1),
					array('volume' => 85, 'edition' => 6),
					array('volume' => 98, 'edition' => 2),
					array('volume' => 86, 'edition' => 6),
					array('volume' => 67, 'edition' => 7)
				))
			))
		);
 
$callback_func = create_function('$key, $value', 'return ($value < 2 || $value > 70) ? true : false;');
 
print_r(array_filter_multi($data, $callback_func, null));
 
function array_filter_multi($array, $callback, $filtered_output = ""){
	$ret = array();
	foreach($array as $key=>$value){
		if($callback($key,$value)){
			if(is_array($value)){
				$ret[$key] = array_filter_multi($value, $callback, $filtered_output);
			}elseif(is_object($value)){
				$ret[$key] = array_filter_multi(get_object_vars($value), $callback, $filtered_output);
			}else{    
				$ret[$key]=$value;
			}
		}else{
			$ret[$key]=$filtered_output;
		}
	}
	return $ret;
}
?>
</pre>