SQLSTATE[HY000] [2002] php_network_getaddresses：getaddrinfo 失败：不知道这样的主机。 laravel 8 中的错误

Question

当我写 php artisan migrate 命令时，我看到了这样的东西：-

SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: No such host is known.  (SQL: select * from information_schema.tables where table_schema = crudtwo and table_name = migrations and table_type = 'BASE TABLE')

    674▕         // If an exception occurs when attempting to run a query, we'll format the error
    675▕         // message to include the bindings with SQL, which will make this exception a
    676▕         // lot more helpful to the developer instead of just the database's errors.
    677▕         catch (Exception $e) {
  ➜ 678▕             throw new QueryException(
    679▕                 $query, $this->prepareBindings($bindings), $e
    680▕             );
    681▕         }
    682▕

  1   C:\Users\NaimBiswas\Desktop\Laravel\four\crudtwo\vendor\laravel\framework\src\Illuminate\Database\Connectors\Connector.php:70
      PDOException::("PDO::__construct(): php_network_getaddresses: getaddrinfo failed: No such host is known. ")

  2   C:\Users\NaimBiswas\Desktop\Laravel\four\crudtwo\vendor\laravel\framework\src\Illuminate\Database\Connectors\Connector.php:70
      PDO::__construct("mysql:host=mysql;port=3306;dbname=crudtwo", "root", "", [])

几个小时后我找到了解决方案。解决方案只是从 .env 文件中删除 DB_HOST=mysql 现在我的问题是任何人都可以解释更多关于这个，为什么会出现这个错误，为什么它在删除 DB_HOST=mysql.

后解决

Answer 1

错误PDO::__construct("mysql:host=mysql;port=3306;dbname=crudtwo", "root", "", [])表明您在 .env 文件中输入错误

将 .env 文件中的 DB_HOST 更改为

//Change
DB_HOST=mysql

//To
DB_HOST=127.0.0.1

SQLSTATE[HY000] [2002] php_network_getaddresses：getaddrinfo 失败：不知道这样的主机。 laravel 8 中的错误

SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: No such host is known. Error in laravel 8

php

mysql

laravel

fatal-error

web-development-server