php - How to Display the set of series not from the array? -

i have following array:

array (     [0] => 3     [1] => 6     [2] => 3     [3] => 4     [4] => 5     [5] => 7     [6] => 6     [7] => 7 ) 

we have split array (order should 3,4,5,6,7)

output should be

array 1: 3,4,5,6,7 (3 taken [0],4 taken [3],5 taken [4],6 taken [6],7 taken [7]) array 2: 3,-,-,-,- (3 taken [2] nd position) array 3: -,-,-,6,7 (6 taken [1] nd position,7 taken [5] nd position) 

basically youre asking this...

  $array = array(3,6,3,4,5,7,6,7);    $array1 = array($array[0],$array[3],$array[4],$array[6],$array[7]);   $array2 = array($array[2],"-","-","-","-");   $array3 = array("-","-","-",$array[1],$array[5]);