How to round up a number to nearest 10?

Question

How can we round off a number to the nearest 10 in php? Say I have `23`, what code would I use to round it off to `30`?

Accepted Answer

`floor()` will go down.

`ceil()` will go up.

`round()` will go to nearest by default.

Divide by 10, do the ceil, then multiply by 10 to reduce the significant digits.

```
$number = ceil($input / 10) * 10;
```

Edit: I've been doing it this way for so long.. but TallGreenTree's answer is cleaner.

Solution