Function that returns only numbers?

Question

``` function get_only_numbers($string){ $getonly = str_split("0123456789"); $string = str_split($string); foreach($string as $i => $c){ if(!in_array($c, $getonly)) unset($string[$i]); } return implode("", $string); } echo get_only_numbers("U$ 499,50"); // prints 49950 ``` This function is supposed to return only the numbers from a string. Has this function been coded properly?

Accepted Answer

I think a single call to preg_replace can do that as well:

```
preg_replace('/\D+/', '', 'U$ 499,50'); // returns "49950"
```

Function that returns only numbers?

Solution

Problem