/**
* Generator of secure random tokens.
*
* Note that it is best to use an even number for the length.
*
* @param int|null $length (defaults to defaultLength)
* @return string Key
*/
public function generateKey($length = null)
{
if (empty($length)) {
$length = $this->defaultLength;
}
if (version_compare(PHP_VERSION, '7.0.0') >= 0) {
$function = 'random_bytes';
} elseif (extension_loaded('openssl')) {
$function = 'openssl_random_pseudo_bytes';
} else {
trigger_error('Not secure', E_USER_DEPRECATED);
return Random::pwd($length);
}
$value = bin2hex($function($length / 2));
if (strlen($value) !== $length) {
$value = str_pad($value, $length, '0');
}
return $value;
}
public function testPwd()
{
$result = Random::pwd(10);
$this->assertTrue(mb_strlen($result) === 10);
}
/**
* Generator
*
* @param length (defaults to defaultLength)
* @return string Key
*/
public function generateKey($length = null)
{
if (empty($length)) {
$length = $this->defaultLength;
}
return Random::pwd($length);
}
