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

If you can count on it always having 2 decimal places, you can just use a string operation:

$decimal = 1.25;
substr($decimal,-2);  // returns "25" as a string

No idea of performance but for my simple case this was much better...