function is_email($email){$chars = "/\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/";if (preg_match($chars, $email)){return true;}else{return false;}}public function info($url=''){$top_info_id = get_info_id($url);if(input('cid/d') == ''){$info = get_nav_info($top_info_id);}else{$info = get_nav_info(input('cid/d'));}return $info;}public function topInfo($url=''){$top_info_id = get_info_id($url);return get_nav_info($top_info_id);}public function assign($info,$top_info=''){if($top_info == ''){$top_info = ['id' => -1,'name' => '','url' => ''];}if(empty($info['name'])){$info['name'] = '';}if(empty($info['keywords'])){$info['keywords'] = '';}if(empty($info['description'])){$info['description'] = '';}if(empty($info['lang_key'])){$info['lang_key'] = '';}View::assign('seo_keywords',$info['keywords']);//View::assign('seo_title',$info['name'].'-'.setting('web_name'));View::assign('seo_title',l($info['lang_key']).' - '.l('web_name'));View::assign('seo_description',$info['description']);View::assign('top_info',$top_info);View::assign('info',$info);}public function success($msg = '', $data = ''){return json(['code' => 1, 'msg' => $msg, 'data' => $data]);}public function error($msg = '', $data = ''){return json(['code' => 0, 'msg' => $msg, 'data' => $data]);}