- var_dump: documentation ( source)
<?php
$x = "0.00002123";
$calculation1 = bcadd($x,5,12); // adding variable $x to 5
$calculation2 = bcmul($x,4,12); // multiply variable $x to 4
$calculation3 = bcdiv($x,5,12); // divide variable $x to 5
var_dump($calculation1, $calculation1, $calculation3);