/**
* 批量判断键值是否存在
* @param array $keys 键名数组
* @return array 返回存在的keys
*/
public function mDel($keys)
{
if ($this->driver->checkDriver()) {
if (method_exists($this->driver, 'mDel')) {
return $this->driver->mDel($keys);
} else {
$status = true;
foreach ($keys as $key) {
$ret = $this->driver->del($key);
//如果有删除失败，则整个批量删除判断为失败，但继续执行完所有删除操作
if (!$ret) {
$status = false;
}
}
return $status;
}
}
if ($this->driver->isFallback() && $this->type !== self::$config['fallback']) {
return $this->driver->backup()->mDel($keys);
}
return false;
}