How to implement mongoDB singleton mode operation class in PHP

jacklove
Release: 2023-03-27 14:10:02
Original
1625 people have browsed it

This article explains how to implement the mongoDB singleton mode operation class in PHP.

I have seen many mongo classes and they are all unsatisfactory. Finally, I found that there was no need to encapsulate the class myself. The methods that come with the php mongo extension are already very convenient

, but it is customary to encapsulate the database connection part. Finally, I encapsulated a singleton mode database class

The singleton mode is used to avoid generating multiple instances and wasting resources

The following is the encapsulated code

class Mongo_db
{
private static $cli; 
/** 
* 不允许初始化 
*/ 
private function __construct() 
{ 
$config = Config::get('config.mongo_config'); 
if(empty($config)){ 
$this->throwError('无法连接数据库!'); 
} 
if (!empty($config["user_name"])) { 
$this->mongo = new MongoClient("mongodb://{$config['user_name']}:{$config['password']}@{$config['host']}:{$config['port']}");
}else { 
$this->mongo = new MongoClient($config['host'] . ':' . $config['port']); 
} 
} 
/** 
* 单例模式
* @return Mongo|null 
*/
public static function cli(){ 
if(!(self::$cli instanceof self)){ 
self::$cli = new self(); 
}
return self::$cli->mongo; 
} 
}
$mongo = Mongo_db::cli()->test->mycollection; // test 是选择的数据库 , mycollection
Copy after login

This article explains how to implement the mongoDB singleton mode operation class in PHP. For more related content, please pay attention to the PHP Chinese website.

Related recommendations:

PHP WeChat development: WeChat recording temporary conversion to permanent storage

php is created using the imagecopymerge() function Translucent watermark method

Discuz! Tutorial: How to modify theme views through a simple php file?

The above is the detailed content of How to implement mongoDB singleton mode operation class in PHP. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!