protected function parseHash($hash)
{
parent::parseHash($hash);
if ($hash === null) {
$this->params = $this->getDefaultParams();
return;
}
$parts = explode($this->getDelimiter(), $hash);
$paramKeys = array_keys($this->getDefaultParams());
if (count($parts) < count($paramKeys)) {
throw new PasswordError('Hash is missing required parameters.');
}
if ($paramKeys) {
$this->args = array_splice($parts, count($paramKeys));
$this->params = array_combine($paramKeys, $parts);
} else {
$this->args = $parts;
}
if ($this->args) {
$this->hash = array_pop($this->args);
} else {
$this->hash = null;
}
}