ต้องการ SORT Array B ให้เรียงตาม Array A ครับผม .. ......

        $arrA = array('USD 50-100', 'USD 5-20', 'USD 1-2', 'GBP', 'EUR', 'JPY', 'HKD');
        print_r($arrA);

        $curr = array('GBP','USD 50-100','USD 5-20', 'USD 1-2', 'EUR', 'HKD', 'JPY');
        $buy = array('50.22','35.01','35.05', '35.19', '40', '4.64', '29.9');
        $sell = array('50.33','35.99' ,'35.88','35.03' , '40.90', '5.09', '30');

        for ($i=0;$i<count($arrA); $i++) {
            $arr ['currency'] = $curr[$i];
            $arr ['buy'] = $buy[$i];
            $arr ['sell'] = $sell[$i];
            $arrB[] = $arr;
        }
        print_r($arrB);