| public generateValidationHash ( string $code ) : string | ||
| $code | string | the CAPTCHA code |
| return | string | a hash code generated from the CAPTCHA code |
public function generateValidationHash($code)
{
for ($h = 0, $i = strlen($code) - 1; $i >= 0; --$i) {
$h += ord($code[$i]);
}
return $h;
}