Addition of variable not giving perfect value () [Floating point error]

[BKSoftCraft]

<?php
$sum = 296.95 + 297.95 + 41.3;
echo $sum;      // Print Sum :636.1999999999999
// In Core PHP work fine
?>

[jakubmisek]

It's the exact opposite - PHP is not giving the exact value. It tries to hide the floating-point-number error implicitly.

If you use debug_zval_dump($sum) in PHP, you'd see the correct value.

We don't do this rounding inside echo.