How to solve thinkphp display connection error

First, we need to understand the cause of this problem. A connection error is displayed, usually because the database connection fails or the database configuration is incorrect. Therefore, we need to check whether our database configuration is correct. To find the following code, you need to enter the database.php file in the config directory:

// 数据库类型
'type'        => 'mysql',
// 服务器地址
'hostname'    => '127.0.0.1',
// 数据库名
'database'    => 'test',
// 数据库用户名
'username'    => 'root',
// 数据库密码
'password'    => '',
// 数据库连接端口
'hostport'    => '',
// 数据库连接参数
'params'      => [],
// 数据库编码默认采用utf8
'charset'     => 'utf8',
// 数据库表前缀
'prefix'      => 'think_',

Here, we need to pay attention to several places:

• Whether the database user name and password are correct;

• Is the database name correct?

• Is the database connection address correct?

• Database port number Is it correct?

• Is the table prefix correct?

After completing the check, you can try to use the command line tool locally to connect to the database to confirm whether the connection can be successful. If the connection is successful, we can be sure that there is no problem with the database configuration.

Next, we can check whether the database is running normally. We can try to connect to the database and execute some SQL statements to check whether it can run normally. If SQL executes normally, it proves that there is no problem with the database.

If no problem is found in the first two steps, we can try to check whether there is a problem with the ThinkPHP framework itself. Checking the logs of the ThinkPHP framework can help us find any prompts or error messages to locate the problem.

What is thinkphp

thinkphp is a free development framework that can be used to develop front-end web pages. The earliest thinkphp was created to simplify development. Thinkphp also follows the Apache2 protocol. It was originally Evolved from Struts, we also make use of some good foreign framework patterns, use object-oriented development structures, and are compatible with many tag libraries and other patterns. It can develop and deploy applications more conveniently and quickly, and of course it is not just enterprise-level applications. , any PHP application development can benefit from the simplicity, compatibility and speed of thinkphp.

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