php - multiple combinations in an Array -

i have array, amount of items in array can change. trying find different combinations values inside array, example array has these values;

array ( [0] => 60.0 [1] => 56.8 [2] => 42.08 [3] => 52.16 [4] => 52.8 )

is possible count number of values (in case 5) this;

60.0 + 56.8
60.0 + 56.8 + 42.08
60.0 + 56.8 + 42.08 + 52.16
60.0 + 56.8 + 42.08 + 52.16 + 52.8

but show combinations such as;
56.8 + 42.08
42.08 + 52.16
etc

i have tried using multi dimensional arrays, array shifting , other array related code.

simple sum up, pop last element.

will produce expected output, reversed. (you can add result array , resort, if required)

//untestet while (count($myarray) > 1)){   $current = 0;   foreach ($myarray $e){     $current += $e;   }   echo "a result : " . $current;    //remove last entry   array_pop($myarray); } 

this modify array. do

$myarray = array(1,2,3); ($i=0; $i<count($myarray); $i++){   $sums_until_index[$i] = 0;   ($k=0; $k<=$i; $k++){     $sums_until_index[$i] += $myarray[$k];     }  }  print_r($sums_until_index); //array ( [0] => 1 [1] => 3 [2] => 6 )