Sorry I couldn't explain clearly in the title. I Studied math in other language I don't know what it calls.

I have these values.

```
$input = 13.2156;
$input = 45.232;
$input = 1193.215624;

```

I want a function in PHP to get what what after the dot,
which is this case

```
$input = 13.2156;     // 0.2156
$input = 45.232;      // 0.232
$input = 1193.215624; // 0.215624

```

I know `intval()` do the opposite. **BUT** I want the opposite of the opposite. :D