Modulus (%) operator behave awkwardly!

[HabibRahman]

dear Members...

see the sample code:

$val = .815;
$val = $val * 10000; // $val should be 8150
$a = $val % 50; // $a should be 0
echo 'remainder: '. $a ;

-------- Output ----
remainder: 49

how ??????

But if I simply write this...
$a = 8150 % 50;

then the result shows 0.

really awkward !!!

[seandisanti]

The reason this happens is a little more complicated than i currently have time to explain, but if you explicitly round it though, it works.

Code: Select all


<?php
$val = .815;
$val = round($val * 10000); // $val should be 8150
echo $val . '<br />';
$a = $val % 50; // $a should be 0
echo 'remainder: '. $a ;