Php, calculate percentage on multiple items

Question

I have 5 items in total, and I would like to calculate percentage based on [data] filed. The result will be used for pie chart.

Array
(
    [0] => Array
          


        

Answer 1

If you want your code to be flexible:

$array= [
      0 => [
        'label' => 'Item1',
        'data' => 849,
        ],
      1 => [
        'label' => 'Item1',
        'data' => 849,
        ],
      2 => [
        'label' => 'Item1',
        'data' => 849,
        ],
      3 => [
        'label' => 'Item1',
        'data' => 849,
      ],
      4 => [
        'label' => 'Item1',
        'data' => 849,
        ],
      5 => [
        'label' => 'Item1',
        'data' => 849,
        ]
];
   foreach($array as $key => $val){
     $sum +=$val['data'];
   }
  echo "output  =  ".(count($val['data'])/$sum)*100;
?>