我的 WordPress 网站和 phpMyAdmin 无法连接到 MySQL

Question

这是我的问题：我的 WordPress 网站和 phpMyAdmin 无法访问 MySQL。

我在 x86_64（MySQL 社区服务器 - GPL）上为 Linux 使用 Centos 7 和 MySQK 8.0.18。

我试了很多东西，但我不知道哪里出了问题。

我已经尝试过的背景

-我有另一个由纯 php 组成的网站，它能够使用 mysqli.

连接到我的数据库

-我尝试重新安装几次 MySQL、phpMyAdmin 和 PHP。

-禁用连接到 phpmyadmin

的密码

-授予测试用户所有数据库的所有权限

-我可以通过以下方式正确连接到 mysql：mysql -u root -p

-testuser 拥有所有数据库的所有权限（他像 root）

PHPMYADMIN 配置 (/etc/phpMyAdmin/config.inc.php):

<?php
/**
 * phpMyAdmin configuration file, you can use it as base for the manual
 * configuration. For easier setup you can use "setup/".
 *
 * All directives are explained in Documentation.html and on phpMyAdmin
 * wiki <http://wiki.phpmyadmin.net>.
 */

/*
 * This is needed for cookie based authentication to encrypt password in
 * cookie
 */
$cfg['blowfish_secret'] = '*********************'; /* YOU MUST FILL IN THIS FOR COOKIE AUTH! */

/**
 * Server(s) configuration
 */
$i = 0;

// The $cfg['Servers'] array starts with $cfg['Servers'][1].  Do not use
// $cfg['Servers'][0]. You can disable a server config entry by setting host
// to ''. If you want more than one server, just copy following section
// (including $i incrementation) serveral times. There is no need to define
// full server array, just define values you need to change.
$i++;
$cfg['Servers'][$i]['host']          = '127.0.0.1'; // MySQL hostname or IP address
$cfg['Servers'][$i]['port']          = '';          // MySQL port - leave blank for default port
$cfg['Servers'][$i]['socket']        = '';          // Path to the socket - leave blank for default socket
$cfg['Servers'][$i]['connect_type']  = 'tcp';       // How to connect to MySQL server ('tcp' or 'socket')
$cfg['Servers'][$i]['extension']     = 'mysqli';    // The php MySQL extension to use ('mysql' or 'mysqli')
$cfg['Servers'][$i]['compress']      = FALSE;       // Use compressed protocol for the MySQL connection
                                                    // (requires PHP >= 4.3.0)
$cfg['Servers'][$i]['controluser']   = '';          // MySQL control user settings
                                                    // (this user must have read-only
$cfg['Servers'][$i]['controlpass']   = '';          // access to the "mysql/user"
                                                    // and "mysql/db" tables).
                                                    // The controluser is also
                                                    // used for all relational
                                                    // features (pmadb)
$cfg['Servers'][$i]['auth_type']     = 'cookie';    // Authentication method (config, http or cookie based)?
$cfg['Servers'][$i]['user']          = 'testuser';          // MySQL user
$cfg['Servers'][$i]['password']      = 'Password3';          // MySQL password (only needed
                                                    // with 'config' auth_type)
$cfg['Servers'][$i]['only_db']       = '';          // If set to a db-name, only
                                                    // this db is displayed in left frame
                                                    // It may also be an array of db-names, where sorting order is relevant.
$cfg['Servers'][$i]['hide_db']       = '';          // Database name to be hidden from listings
$cfg['Servers'][$i]['verbose']       = '';          // Verbose name for this host - leave blank to show the hostname

$cfg['Servers'][$i]['pmadb']         = '';          // Database used for Relation, Bookmark and PDF Features
                                                    // (see scripts/create_tables.sql)
                                                    //   - leave blank for no support
                                                    //     DEFAULT: 'phpmyadmin'
$cfg['Servers'][$i]['bookmarktable'] = '';          // Bookmark table
                                                    //   - leave blank for no bookmark support
                                                    //     DEFAULT: 'pma_bookmark'
$cfg['Servers'][$i]['relation']      = '';          // table to describe the relation between links (see doc)
                                                    //   - leave blank for no relation-links support
                                                    //     DEFAULT: 'pma_relation'
$cfg['Servers'][$i]['table_info']    = '';          // table to describe the display fields
                                                    //   - leave blank for no display fields support
                                                    //     DEFAULT: 'pma_table_info'
$cfg['Servers'][$i]['table_coords']  = '';          // table to describe the tables position for the PDF schema
                                                    //   - leave blank for no PDF schema support
                                                    //     DEFAULT: 'pma_table_coords'
$cfg['Servers'][$i]['pdf_pages']     = '';          // table to describe pages of relationpdf
                                                    //   - leave blank if you don't want to use this
                                                    //     DEFAULT: 'pma_pdf_pages'
$cfg['Servers'][$i]['column_info']   = '';          // table to store column information
                                                    //   - leave blank for no column comments/mime types
                                                    //     DEFAULT: 'pma_column_info'
$cfg['Servers'][$i]['history']       = '';          // table to store SQL history
                                                    //   - leave blank for no SQL query history
                                                    //     DEFAULT: 'pma_history'
$cfg['Servers'][$i]['verbose_check'] = TRUE;        // set to FALSE if you know that your pma_* tables
                                                    // are up to date. This prevents compatibility
                                                    // checks and thereby increases performance.
$cfg['Servers'][$i]['AllowRoot']     = TRUE;        // whether to allow root login
$cfg['Servers'][$i]['AllowDeny']['order']           // Host authentication order, leave blank to not use
                                     = '';
$cfg['Servers'][$i]['AllowDeny']['rules']           // Host authentication rules, leave blank for defaults
                                     = array();
$cfg['Servers'][$i]['AllowNoPassword']              // Allow logins without a password. Do not change the FALSE
                                     = FALSE;       // default unless you're running a passwordless MySQL server
$cfg['Servers'][$i]['designer_coords']              // Leave blank (default) for no Designer support, otherwise
                                     = '';          // set to suggested 'pma_designer_coords' if really needed
$cfg['Servers'][$i]['bs_garbage_threshold']         // Blobstreaming: Recommented default value from upstream
                                     = 50;          //   DEFAULT: '50'
$cfg['Servers'][$i]['bs_repository_threshold']      // Blobstreaming: Recommented default value from upstream
                                     = '32M';       //   DEFAULT: '32M'
$cfg['Servers'][$i]['bs_temp_blob_timeout']         // Blobstreaming: Recommented default value from upstream
                                     = 600;         //   DEFAULT: '600'
$cfg['Servers'][$i]['bs_temp_log_threshold']        // Blobstreaming: Recommented default value from upstream
                                     = '32M';       //   DEFAULT: '32M'
/*
 * End of servers configuration
 */

/*
 * Directories for saving/loading files from server
 */
$cfg['UploadDir'] = '/var/lib/phpMyAdmin/upload';
$cfg['SaveDir']   = '/var/lib/phpMyAdmin/save';

/*
 * Disable the default warning that is displayed on the DB Details Structure
 * page if any of the required Tables for the relation features is not found
 */
$cfg['PmaNoRelation_DisableWarning'] = TRUE;

/*
 * phpMyAdmin 4.4.x is no longer maintained by upstream, but security fixes
 * are still backported by downstream.
 */
$cfg['VersionCheck'] = FALSE;
?>

* WORDPRESS 配置 *

<?php
/**
 * The base configuration for WordPress
 *
 * The wp-config.php creation script uses this file during the
 * installation. You don't have to use the web site, you can
 * copy this file to "wp-config.php" and fill in the values.
 *
 * This file contains the following configurations:
 *
 * * MySQL settings
 * * Secret keys
 * * Database table prefix
 * * ABSPATH
 *
 * @link https://codex.wordpress.org/Editing_wp-config.php
 *
 * @package WordPress
 */

// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define( 'DB_NAME', 'testdatabase' );

/** MySQL database username */
define( 'DB_USER', 'testuser' );

/** MySQL database password */
define( 'DB_PASSWORD', 'Password3' );

/** MySQL hostname */
define( 'DB_HOST', '127.0.0.1' );

/** Database Charset to use in creating database tables. */
define( 'DB_CHARSET', 'utf8mb4' );

/** The Database Collate type. Don't change this if in doubt. */
define( 'DB_COLLATE', '' );

/**#@+
 * Authentication Unique Keys and Salts.
 *
 * Change these to different unique phrases!
 * You can generate these using the {@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org secret-key service}
 * You can change these at any point in time to invalidate all existing cookies. This will force all users to have to log in again.
 *
 * @since 2.6.0
 */
define( 'AUTH_KEY',         '***************************' );
define( 'SECURE_AUTH_KEY',  '**********************' );
define( 'LOGGED_IN_KEY',    '******************' );
define( 'NONCE_KEY',        '****************' );
define( 'AUTH_SALT',        '**************' );
define( 'SECURE_AUTH_SALT', '************' );
define( 'LOGGED_IN_SALT',   '******' );
define( 'NONCE_SALT',       '*****' );

/**#@-*/

/**
 * WordPress Database Table prefix.
 *
 * You can have multiple installations in one database if you give each
 * a unique prefix. Only numbers, letters, and underscores please!
 */
$table_prefix = 'wp_';

/**
 * For developers: WordPress debugging mode.
 *
 * Change this to true to enable the display of notices during development.
 * It is strongly recommended that plugin and theme developers use WP_DEBUG
 * in their development environments.
 *
 * For information on other constants that can be used for debugging,
 * visit the Codex.
 *
 * @link https://codex.wordpress.org/Debugging_in_WordPress
 */
define( 'WP_DEBUG', false );

/* That's all, stop editing! Happy publishing. */


define('WP_ALLOW_REPAIR', true);
/** Absolute path to the WordPress directory. */
if ( ! defined( 'ABSPATH' ) ) {
    define( 'ABSPATH', dirname( __FILE__ ) . '/' );
}

/** Sets up WordPress vars and included files. */
require_once( ABSPATH . 'wp-settings.php' );

```



The errors I get:
WordPress error : Error establishing a database connection
PhpMyAdmin error:  Cannot log in to the MySQL server

I can access phpMyAdmin (mywebsite.com/phpMyadmin/index.php)
I can access my databases with another test website I made out of pure php.

Answer 1

终于找到答案了

用户 testuser 密码开头：“$”

例如：$密码123

我觉得自己很蠢....:')

我的 WordPress 网站和 phpMyAdmin 无法连接到 MySQL

My WordPress website and phpMyAdmin are not able to connect to MySQL

mysql

database

wordpress

centos

phpmyadmin

我已经尝试过的背景