preg_match

For the following code:

```
$matches = array();
$ret     = preg_match("{^(\S+)\s+(\d+)}", "123 4", $matches);
var_dump($ret);

if ($ret > 0)
{
    var_dump($matches);
}
```

Expected output:

```
int(1)
array(3) {
  [0]=>
  string(5) "123 4"
  [1]=>
  string(3) "123"
  [2]=>
  string(1) "4"
}
```

Outputs:

```
int(3)
array(0) {
}
```
