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Replies for: How can sum [0][0],[0][1],[0][2] and find percentage for their. Please help me

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thormeier profile image
Pascal Thormeier •

A nested array can be summed up using array_sum for example. You could, for example, do something like this:

$sum = array_sum($m[0]); // Sums up $m[0][0] + $m[0][1] + $m[0][2] etc.
$percentageM00 = $m[0][0] / $sum;
$percentageM01 = $m[0][1] / $sum;
$percentageM02 = $m[0][2] / $sum;
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If, on the other hand, you want to sum up the rows (so, $m[0][0], $m[1][0] $m[2][0] etc.), you need to get those values first. You could use a foreach for that:

$sum = 0;

foreach ($m as $col) {
  $sum += $col[0];
}
$percentageM00 = $m[0][0] / $sum;
$percentageM10 = $m[1][0] / $sum;
$percentageM20 = $m[2][0] / $sum;
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Does that help you?

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endluen profile image
Endluen •

Thank You ❤