$a = array(0,1,2,3,4,5);
        $b = array(6,7,8,9,10);
        $c = array_combine($a, $b);
        print_r($c);

        $new_a = $a + $b;
        $new_b = $b + $a;
        $new_c = $a + $c;
        foreach ($new_a as $value) {
            echo $value;
        }
        foreach ($new_b as $value) {
            echo $value;
        }
        foreach ($new_c as $value) {
            echo $value;
        }
        $arr = 1;
        while($arr <= 10) {
            echo $arr++;
        }
        foreach($b as $i) {
            //$a[] = $i;
                echo $i;
        }