<?php
/**
* @see https://community.developer.authorize.net/t5/The-Authorize-Net-Developer-Blog/Precision-Math-with-PHP/ba-p/8368
*/
var_dump(((0.2 + 1.4) * 3)); // Should be 16. But it's 15!
// Using BC Math
var_dump(bcadd('0.2', '1.4', 2) * 3); // It's 16 like we would expect it to be.
float(4.8)
Fatal error: Uncaught Error: Call to undefined function bcadd() in /in/U1EXc:10
Stack trace:
#0 {main}
thrown in /in/U1EXc on line 10
Process exited with code 255.