bcosca/fatfree — pull request #459 by emanwebdev (2013-12-13 04:34:57+00:00)
Title: captcha galores  :))

or
```
384:$seed=strtoupper(substr(uniqid('',TRUE),-$len));
```

but not better imho, as uniqid with more entropy generates a dot
and anyway, a captcha of 13 is long enough (?? reCaptcha's are longer)