How to get whole and decimal part of a number?

Question

Given, say, 1.25 - how do I get \"1\" and .\"25\" parts of this number?

I need to check if the decimal part is .0, .25, .5, or .75.

Answer 1

This is the way which I use:

$float = 4.3;    

$dec = ltrim(($float - floor($float)),"0."); // result .3