iterate over all multidimensional array

iterate over all multidimensional array

    function in_array_r($needle, $haystack, $strict = false) {

        // iterate over all items
        foreach ($haystack as $key => $item) {

            // check if the item is array, if so then call recursive function
            if (is_array($item)){
                $ret = in_array_r($needle, $item, $strict);
                if( is_array($ret) )
                    return $ret;
            }

            // check if the current item is satisfying the needle
            else {

                $needle_length = count($needle);
                $equal = 0;

                foreach( $needle as $n_key => $n_value )
                    ( $n_value == $haystack[$n_key] ) ? $equal++ : $equal;

                if( $equal >= $needle_length )
                    return $haystack;

            }
        }

    };

    $objects2 = array(
        array("flight_time" => 1, "number"=>20, "test"=>"1"),
        array("flight_time" => 2, "number"=>30, "test"=>"35"),
        array("flight_time" => 13, "number"=>31, "test"=>"39"),
        array("flight_time" => 4, "number"=>41, "test"=>"45"),
        array("flight_time" => 10, "number"=>34, "test"=>"55"),
    );
    foreach( $arr as $key => $value )
        in_array_r(["flight_time"=>10, "number"=>34, "test"=>"55"], $objects2);