Laravel: SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client

问题

after installing a new laravel app 5.7 and trying to migrate I get this error:

Illuminate\Database\QueryException : SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client (SQL: select * from information_schema.tables where table_schema = xxx_db and table_name = migrations)

at C:\xampp\htdocs\xxxxx\vendor\laravel\framework\src\Illuminate\Database\Connection.php:664 660| // If an exception occurs when attempting to run a query, we'll format the error 661| // message to include the bindings with SQL, which will make this exception a 662| // lot more helpful to the developer instead of just the database's errors. 663| catch (Exception $e) {

664| throw new QueryException( 665| $query, $this->prepareBindings($bindings), $e 666| ); 667| } 668|

Exception trace:

1 PDOException::("PDO::__construct(): The server requested authentication method unknown to the client [caching_sha2_password]") C:\xampp\htdocs\xxxxx\vendor\laravel\framework\src\Illuminate\Database\Connectors\Connector.php:70

2 PDO::__construct("mysql:host=127.0.0.1;port=3306;dbname=xxx_db ", "root", "**********", []) C:\xampp\htdocs\xxxxx\vendor\laravel\framework\src\Illuminate\Database\Connectors\Connector.php:70

Please use the argument -v to see more details.

回答1:

Re installed MySQL choosing Legacy Authentication Method as shown in iamge attached SQL Authentication method

Database parameters in .env as follows

DB_CONNECTION=mysql  
DB_HOST=127.0.0.1  
DB_PORT=3306  
DB_DATABASE=database_name  
DB_USERNAME=database_username  
DB_PASSWORD=database_password(if any)

Database parameters in config/database.php

'mysql' => [  
    'driver' => 'mysql',  
    'url' => env('DATABASE_URL'),  
    'host' => env('DB_HOST', '127.0.0.1'),  
    'port' => env('DB_PORT', '3306'),  
    'database' => env('DB_DATABASE', 'database_name'),  
    'username' => env('DB_USERNAME', 'database_username'),  
    'password' => env('DB_PASSWORD', 'database_password'),  
    'unix_socket' => env('DB_SOCKET', ''),  
    'charset' => 'utf8mb4',  
    'collation' => 'utf8mb4_unicode_ci',  
    'prefix' => '',  
    'prefix_indexes' => true,  
    'strict' => true,  
    'engine' => null,  
    'options' => extension_loaded('pdo_mysql') ? array_filter([  
        PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),  
    ]) : [],  
],

Run php artisan migrate from the projects terminal

回答2:

This query solved my problem.

 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';

回答3:

By Providing DB_SOCKET in .env file this issue can be resolved like this :

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=8889
DB_DATABASE=my_db
DB_USERNAME=root
DB_PASSWORD=
DB_SOCKET=/Applications/MAMP/tmp/mysql/mysql.sock

回答4:

Go to your .env file and make sure DB_CONNECTION=mysqland DB connections are correct.

来源：https://stackoverflow.com/questions/53607322/laravel-sqlstatehy000-2054-the-server-requested-authentication-method-unkno

标签

php

mysql

laravel

artisan

migrate