diff --git a/core/modules/mysql/src/Driver/Database/mysql/Connection.php b/core/modules/mysql/src/Driver/Database/mysql/Connection.php
index 48a42294c070480039a49ec3f830d3fa023a21a1..14f3049403abdbfbabc9f18d19c0197e0870111a 100644
--- a/core/modules/mysql/src/Driver/Database/mysql/Connection.php
+++ b/core/modules/mysql/src/Driver/Database/mysql/Connection.php
@@ -38,21 +38,6 @@ class Connection extends DatabaseConnection implements SupportsTemporaryTablesIn
*/
const CONNECTION_REFUSED = 2002;
- /**
- * Error code for "Can't initialize character set" error.
- */
- const UNSUPPORTED_CHARSET = 2019;
-
- /**
- * Driver-specific error code for "Unknown character set" error.
- */
- const UNKNOWN_CHARSET = 1115;
-
- /**
- * SQLSTATE error code for "Syntax error or access rule violation".
- */
- const SQLSTATE_SYNTAX_ERROR = 42000;
-
/**
* {@inheritdoc}
*/
@@ -130,13 +115,6 @@ public function __construct(\PDO $connection, array $connection_options) {
* {@inheritdoc}
*/
public static function open(array &$connection_options = []) {
- if (isset($connection_options['_dsn_utf8_fallback']) && $connection_options['_dsn_utf8_fallback'] === TRUE) {
- // Only used during the installer version check, as a fallback from utf8mb4.
- $charset = 'utf8';
- }
- else {
- $charset = 'utf8mb4';
- }
// The DSN should use either a socket or a host/port.
if (isset($connection_options['unix_socket'])) {
$dsn = 'mysql:unix_socket=' . $connection_options['unix_socket'];
@@ -148,7 +126,7 @@ public static function open(array &$connection_options = []) {
// Character set is added to dsn to ensure PDO uses the proper character
// set when escaping. This has security implications. See
// https://www.drupal.org/node/1201452 for further discussion.
- $dsn .= ';charset=' . $charset;
+ $dsn .= ';charset=utf8mb4';
if (!empty($connection_options['database'])) {
$dsn .= ';dbname=' . $connection_options['database'];
}
@@ -216,10 +194,10 @@ public static function open(array &$connection_options = []) {
// 'utf8mb4_general_ci' (MySQL 5) or 'utf8mb4_0900_ai_ci' (MySQL 8) for
// utf8mb4.
if (!empty($connection_options['collation'])) {
- $pdo->exec('SET NAMES ' . $charset . ' COLLATE ' . $connection_options['collation']);
+ $pdo->exec('SET NAMES utf8mb4 COLLATE ' . $connection_options['collation']);
}
else {
- $pdo->exec('SET NAMES ' . $charset);
+ $pdo->exec('SET NAMES utf8mb4');
}
// Set MySQL init_commands if not already defined. Default Drupal's MySQL
diff --git a/core/modules/mysql/src/Driver/Database/mysql/Install/Tasks.php b/core/modules/mysql/src/Driver/Database/mysql/Install/Tasks.php
index 503a6c7c63eba0f6ceff581d0b0a39d036932fc5..4dbd2addf3998c299588daf22b3368fb4a096c5d 100644
--- a/core/modules/mysql/src/Driver/Database/mysql/Install/Tasks.php
+++ b/core/modules/mysql/src/Driver/Database/mysql/Install/Tasks.php
@@ -8,8 +8,6 @@
use Drupal\mysql\Driver\Database\mysql\Connection;
use Drupal\Core\Database\DatabaseNotFoundException;
-// cspell:ignore libmysqlclient
-
/**
* Specifies installation tasks for MySQL and equivalent databases.
*/
@@ -31,16 +29,6 @@ class Tasks extends InstallTasks {
*/
const MARIADB_MINIMUM_VERSION = '10.3.7';
- /**
- * Minimum required MySQLnd version.
- */
- const MYSQLND_MINIMUM_VERSION = '5.0.9';
-
- /**
- * Minimum required libmysqlclient version.
- */
- const LIBMYSQLCLIENT_MINIMUM_VERSION = '5.5.3';
-
/**
* The PDO driver name for MySQL and equivalent databases.
*
@@ -94,34 +82,7 @@ protected function connect() {
// This doesn't actually test the connection.
Database::setActiveConnection();
// Now actually do a check.
- try {
- Database::getConnection();
- }
- catch (\Exception $e) {
- // Detect utf8mb4 incompatibility.
- if ($e->getCode() == Connection::UNSUPPORTED_CHARSET || ($e->getCode() == Connection::SQLSTATE_SYNTAX_ERROR && $e->errorInfo[1] == Connection::UNKNOWN_CHARSET)) {
- $this->fail(t('Your MySQL server and PHP MySQL driver must support utf8mb4 character encoding. Make sure to use a database system that supports this (such as MySQL/MariaDB/Percona 5.5.3 and up), and that the utf8mb4 character set is compiled in. See the <a href=":documentation" target="_blank">MySQL documentation</a> for more information.', [':documentation' => 'https://dev.mysql.com/doc/refman/5.0/en/cannot-initialize-character-set.html']));
- $info = Database::getConnectionInfo();
- $info_copy = $info;
- // Set a flag to fall back to utf8. Note: this flag should only be
- // used here and is for internal use only.
- $info_copy['default']['_dsn_utf8_fallback'] = TRUE;
- // In order to change the Database::$databaseInfo array, we need to
- // remove the active connection, then re-add it with the new info.
- Database::removeConnection('default');
- Database::addConnectionInfo('default', 'default', $info_copy['default']);
- // Connect with the new database info, using the utf8 character set so
- // that we can run the checkEngineVersion test.
- Database::getConnection();
- // Revert to the old settings.
- Database::removeConnection('default');
- Database::addConnectionInfo('default', 'default', $info['default']);
- }
- else {
- // Rethrow the exception.
- throw $e;
- }
- }
+ Database::getConnection();
$this->pass('Drupal can CONNECT to the database ok.');
}
catch (\Exception $e) {
@@ -203,27 +164,4 @@ public function ensureInnoDbAvailable() {
}
}
- /**
- * {@inheritdoc}
- */
- protected function checkEngineVersion() {
- parent::checkEngineVersion();
-
- // Ensure that the MySQL driver supports utf8mb4 encoding.
- $version = Database::getConnection()->clientVersion();
- if (str_contains($version, 'mysqlnd')) {
- // The mysqlnd driver supports utf8mb4 starting at version 5.0.9.
- $version = preg_replace('/^\D+([\d.]+).*/', '$1', $version);
- if (version_compare($version, self::MYSQLND_MINIMUM_VERSION, '<')) {
- $this->fail(t("The MySQLnd driver version %version is less than the minimum required version. Upgrade to MySQLnd version %mysqlnd_minimum_version or up, or alternatively switch mysql drivers to libmysqlclient version %libmysqlclient_minimum_version or up.", ['%version' => $version, '%mysqlnd_minimum_version' => self::MYSQLND_MINIMUM_VERSION, '%libmysqlclient_minimum_version' => self::LIBMYSQLCLIENT_MINIMUM_VERSION]));
- }
- }
- else {
- // The libmysqlclient driver supports utf8mb4 starting at version 5.5.3.
- if (version_compare($version, self::LIBMYSQLCLIENT_MINIMUM_VERSION, '<')) {
- $this->fail(t("The libmysqlclient driver version %version is less than the minimum required version. Upgrade to libmysqlclient version %libmysqlclient_minimum_version or up, or alternatively switch mysql drivers to MySQLnd version %mysqlnd_minimum_version or up.", ['%version' => $version, '%libmysqlclient_minimum_version' => self::LIBMYSQLCLIENT_MINIMUM_VERSION, '%mysqlnd_minimum_version' => self::MYSQLND_MINIMUM_VERSION]));
- }
- }
- }
-
}