Php does not divide by small numbers, what's the problem?

Question

PHP

Good afternoon, I divided 1 / 0.000001 in PHP and the puff gives an error saying that you divide by zero, and it doesn’t give a result, js, in turn, divides the numbers of norms, what could be the problem? and what to do to make it work?

Answer 1

https://3v4l.org/Xej0s
The problem is in your hands, you put a comma instead of a dot

Answer 2

in php - comma? If yes, change to a dot

Answer 3

google floating point numbers)) it’s trite that the precision of the number is not enough to notice the difference with zero,
and js most likely considers long arithmetic in such cases
ps there are libraries for long arithmetic under php