Prosper Permeability algorithm

Permeability.php

$permeabilityArray = [9230, 5940, 3080, 2860, 2790, 2370, 1464,  594,  593,  526,  500, 366];

/** 
* Each number in the array should take turns to divided it self and every other number in the array,
* and a number can only divide itself or a number that has index greater than it.
* E.g 9230 can divide itself and every other number. 3080 can not divide 5940, and 9230 but can divide 
* 2860, 2790, 2370, 1464,  594,  593,  526,  500, and 366.
* Print result different set of arrays. 
*/

for ($i = 0; $i < count($permeabilityArray); $i++ ) {
     $i_data = [];
    foreach ($permeabilityArray as $index => $permeability) {

        if ($i <= $index) {
            $permeability_ratio =  $permeability / $permeabilityArray[$i] . ', ';
            array_push($i_data, $permeability_ratio);
        }
    }
print_r($i_data);
}