Generates a new verification code.
| protected generateVerifyCode ( ) : string | ||
| return | string | the generated verification code |
protected function generateVerifyCode()
{
if ($this->isDigital) {
if ($this->minLength > $this->maxLength) {
$this->maxLength = $this->minLength;
}
if ($this->minLength < 3) {
$this->minLength = 3;
}
if ($this->maxLength > 20) {
$this->maxLength = 20;
}
$length = mt_rand($this->minLength, $this->maxLength);
$code = '';
for ($i = 0; $i < $length; $i++) {
$code .= mt_rand(0, 9);
}
return $code;
}
return parent::generateVerifyCode();
}
/**
* Generates a new verification code.
* @return string the generated verification code
*/
protected function generateVerifyCode()
{
// alphabets ?
if (!$this->useMbChars) {
return parent::generateVerifyCode();
}
$seeds = $this->getCaptchaSeeds();
$len = mb_strlen($seeds, 'UTF-8');
for ($code = '', $i = 0; $i < $this->getCaptchaLength(); ++$i) {
$code .= mb_substr($seeds, mt_rand(0, $len - 1), 1, 'UTF-8');
}
return $code;
}
