merge

public function getRawForTopFive()
    {
        $ad = array
        (
            "0" => array
            (
                "country_id" => 1,
                "speciality_id" => 1,
                "active_doctors" => 11
            ),

            "1" => array
            (
                "country_id" => 1,
                "speciality_id" => 2,
                "active_doctors" => 6
            ),

            "2" => array
            (
                "country_id" => 1,
                "speciality_id" => 4,
                "active_doctors" => 1
            ),

            "3" => array
            (
                "country_id" => 1,
                "speciality_id" => 10,
                "active_doctors" => 1
            ),

            "4" => array
            (
                "country_id" => 2,
                "speciality_id" => 1,
                "active_doctors" => 6
            ),

            "5" => array
            (
                "country_id" => 2,
                "speciality_id" => 2,
                "active_doctors" => 1
            ),

            "6" => array
            (
                "country_id" => 2,
                "speciality_id" => 3,
                "active_doctors" => 1
            ),

            "7" => array
            (
                "country_id" => 2,
                "speciality_id" => 4,
                "active_doctors" => 2
            )

        );

        $pad = array
        (
            "0" => array
            (
                "country_id" => 1,
                "speciality_id" => 1,
                "pending_activation_doctors" => 7
            ),

            "1" => array
            (
                "country_id" => 1,
                "speciality_id" => 2,
                "pending_activation_doctors" => 1
            ),
            "2" => array
            (
                "country_id" => 1,
                "speciality_id" => 8,
                "pending_activation_doctors" => 1
            ),

            "3" => array
            (
                "country_id" => 1,
                "speciality_id" => 10,
                "pending_activation_doctors" => 1
            ),

            "4" => array
            (
                "country_id" => 2,
                "speciality_id" => 1,
                "pending_activation_doctors" => 1
            ),

            "5" => array
            (
                "country_id" => 2,
                "speciality_id" => 4,
                "pending_activation_doctors" => 2
            )

        );

        $is_diff = (count($ad) - count($pad));

        $diff = ($is_diff < 0) ? ($is_diff * -1) : $is_diff;

        for($i = 0; $i < $diff;$i++ ){
            if($is_diff < 0){
                array_push( $ad, array());
            }
            elseif($is_diff > 0){
                array_push($pad,array());
            }
        }


        $out = array();
        foreach ($ad as $key => $value){
            $out[] = (object)array_merge((array)$pad[$key], (array)$value);
        }
        var_dump($out);
    }