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

No loop needed. array_column & array_sum will help. You can try this -

$a= array(
array('label'=>"Item1",'data'=>849),
array('label'=>"Item2",'data'=>657),
array('label'=>"Item3",'data'=>571),
array('label'=>"Item4",'data'=>538),
array('label'=>"Item5",'data'=>446)
);

echo "Percentage : " . ((5 / (array_sum(array_column($a, 'data')))) * 100);

Output

Percentage : 0.16334531198955