Mathematical expression from string

Question

Can someone please tell if I can in PHP evaluate math expression to number? For example I have expresssion: (20 + 40%) + 20% I would get 33.6

I tried using EvalMath class from here: https://www.phpclasses.org/package/2695-PHP-Safely-evaluate-mathematical-expressions.html but it doesn't do the trick

Answer 1

Thats just simple math.

If you have an expression $x + $y% - thats the same as $x + (1 + $y/100).

In your case, you could just write

$y = 20;
$x = $y * 1.4 * 1.2;