How to ensure that each part is equal to 1 when calculating the percentage in PHP?

In PHP, how do I ensure the sum of parts is 1? This post was last edited by Jasmine_xiaocao from 2013-05-1809: 51: 53 $ total $ a + $ B + $ c + $ d; $ percentA ceil ($ a * 100.0 $ total); $ How do I ensure the sum of each department and 1 when calculating the percentage in percentB cei PHP?

This post was last edited by Jasmine_xiaocao at 09:51:53

$total = $a+$b+$c+$d;$percentA = ceil($a*100.0/$total);$percentB = ceil($b*100.0/$total);$percentC = ceil($c*100.0/$total);$percentD = ceil($d*100.0/$total);

The above code does not seem to ensure that the final sum is 100%

$percentD = 100-$percentA-$percentB-$percentC;

Is there any other method besides this?

------ Solution --------------------

$a = array(1,2,3,3);$total = array_sum($a);array_walk($a, function(&$item, $key, $prefix) { $item = round($item*100/$prefix); }, $total);if($d = (100 - array_sum($a))) $a[rand(0, count($a)-1)] += $d;print_r($a);

The above is how to ensure the sum of parts and values of 1 when calculating the percentage in PHP. For more information, see PHP Chinese network (www.php1.cn )!

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