不管什么原因，我都会犯这个错误。
我重新安装了LAMPP，但没有帮助，在web上搜索时发现我应该更改凭证所在的配置文件。
这是我的文件configuration config.inc.php（phpmyadmin）
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* phpMyAdmin sample configuration, you can use it as base for
* manual configuration. For easier setup you can use setup/
*
* All directives are explained in documentation in the doc/ folder
* or at <http://docs.phpmyadmin.net/>.
*
* @package PhpMyAdmin
*/
/**
* This is needed for cookie based authentication to encrypt password in
* cookie
*/
$cfg['blowfish_secret'] = 'xampp'; /* YOU SHOULD CHANGE THIS FOR A MORE SECURE COOKIE AUTH! */
/**
* Servers configuration
*/
$i = 0;
/**
* First server
*/
$i++;
/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = '';
/* Server parameters */
//$cfg['Servers'][$i]['host'] = 'localhost';
//$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['compress'] = false;
$cfg['Servers'][$i]['AllowNoPassword'] = true;
/**
* phpMyAdmin configuration storage settings.
*/
/* User used to manipulate with storage */
// $cfg['Servers'][$i]['controlhost'] = '';
// $cfg['Servers'][$i]['controlport'] = '';
$cfg['Servers'][$i]['controluser'] = 'pma';
$cfg['Servers'][$i]['controlpass'] = '';
/* Storage database and tables */
$cfg['Servers'][$i]['pmadb'] = 'phpmyadmin';
$cfg['Servers'][$i]['bookmarktable'] = 'pma__bookmark';
$cfg['Servers'][$i]['relation'] = 'pma__relation';
$cfg['Servers'][$i]['table_info'] = 'pma__table_info';
$cfg['Servers'][$i]['table_coords'] = 'pma__table_coords';
$cfg['Servers'][$i]['pdf_pages'] = 'pma__pdf_pages';
$cfg['Servers'][$i]['column_info'] = 'pma__column_info';
$cfg['Servers'][$i]['history'] = 'pma__history';
$cfg['Servers'][$i]['table_uiprefs'] = 'pma__table_uiprefs';
$cfg['Servers'][$i]['tracking'] = 'pma__tracking';
$cfg['Servers'][$i]['userconfig'] = 'pma__userconfig';
$cfg['Servers'][$i]['recent'] = 'pma__recent';
$cfg['Servers'][$i]['users'] = 'pma__users';
$cfg['Servers'][$i]['usergroups'] = 'pma__usergroups';
$cfg['Servers'][$i]['navigationhiding'] = 'pma__navigationhiding';
$cfg['Servers'][$i]['savedsearches'] = 'pma__savedsearches';
$cfg['Servers'][$i]['central_columns'] = 'pma__central_columns';
$cfg['Servers'][$i]['designer_coords'] = 'pma__designer_coords';
$cfg['Servers'][$i]['designer_settings'] = 'pma__designer_settings';
$cfg['Servers'][$i]['export_templates'] = 'pma__export_templates';
$cfg['Servers'][$i]['favorite'] = 'pma__favorite';
// $cfg['Servers'][$i]['favorite'] = 'pma__favorite';
// $cfg['Servers'][$i]['users'] = 'pma__users';
// $cfg['Servers'][$i]['usergroups'] = 'pma__usergroups';
// $cfg['Servers'][$i]['navigationhiding'] = 'pma__navigationhiding';
// $cfg['Servers'][$i]['savedsearches'] = 'pma__savedsearches';
// $cfg['Servers'][$i]['central_columns'] = 'pma__central_columns';
// $cfg['Servers'][$i]['designer_settings'] = 'pma__designer_settings';
// $cfg['Servers'][$i]['export_templates'] = 'pma__export_templates';
/* Contrib / Swekey authentication */
// $cfg['Servers'][$i]['auth_swekey_config'] = '/etc/swekey-pma.conf';
/**
* End of servers configuration
*/
/**
* Directories for saving/loading files from server
*/
$cfg['UploadDir'] = '';
$cfg['SaveDir'] = '';
/**
* Whether to display icons or text or both icons and text in table row
* action segment. Value can be either of 'icons', 'text' or 'both'.
* default = 'both'
*/
//$cfg['RowActionType'] = 'icons';
/**
* Defines whether a user should be displayed a "show all (records)"
* button in browse mode or not.
* default = false
*/
//$cfg['ShowAll'] = true;
/**
* Number of rows displayed when browsing a result set. If the result
* set contains more rows, "Previous" and "Next".
* Possible values: 25, 50, 100, 250, 500
* default = 25
*/
//$cfg['MaxRows'] = 50;
/**
* Disallow editing of binary fields
* valid values are:
* false allow editing
* 'blob' allow editing except for BLOB fields
* 'noblob' disallow editing except for BLOB fields
* 'all' disallow editing
* default = 'blob'
*/
//$cfg['ProtectBinary'] = false;
/**
* Default language to use, if not browser-defined or user-defined
* (you find all languages in the locale folder)
* uncomment the desired line:
* default = 'en'
*/
//$cfg['DefaultLang'] = 'en';
//$cfg['DefaultLang'] = 'de';
/**
* How many columns should be used for table display of a database?
* (a value larger than 1 results in some information being hidden)
* default = 1
*/
//$cfg['PropertiesNumColumns'] = 2;
/**
* Set to true if you want DB-based query history.If false, this utilizes
* JS-routines to display query history (lost by window close)
*
* This requires configuration storage enabled, see above.
* default = false
*/
//$cfg['QueryHistoryDB'] = true;
/**
* When using DB-based query history, how many entries should be kept?
* default = 25
*/
//$cfg['QueryHistoryMax'] = 100;
/**
* Whether or not to query the user before sending the error report to
* the phpMyAdmin team when a JavaScript error occurs
*
* Available options
* ('ask' | 'always' | 'never')
* default = 'ask'
*/
//$cfg['SendErrorReports'] = 'always';
/**
* You can find more configuration options in the documentation
* in the doc/ folder or at <http://docs.phpmyadmin.net/>.
*/
我不记得换了证件，如果换了，为什么重新安装后LAMPP不工作？
我在用Debian8和LAMPP。
在我的操作系统中存在一个覆盖LAMPP证书的证书是可能的吗？
我该怎么解决？
非常感谢，如果你需要更多的信息，请告诉我。
更新1：
我确实完全停止了LAMPP并重新启动了我的电脑，并验证了LAMPP不工作。
我在我的过程中搜索了一些mysql的引用，得到了如下信息：
ps aux |grep mysql
root 973 0.0 0.0 4336 1584 ? S 21:14 0:00 /bin/sh /usr/bin/mysqld_safe
mysql 1326 0.1 0.5 492624 46672 ? Sl 21:14 0:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --user=mysql --log-error=/var/log/mysql/error.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306
sudo dpkg -l | grep mysql
ii libdbd-mysql-perl 4.028-2+deb8u2 amd64 Perl5 database interface to the MySQL database
ii libmysqlclient-dev 5.5.54-0+deb8u1 amd64 MySQL database development files
ii libmysqlclient18:amd64 5.5.54-0+deb8u1 amd64 MySQL database client library
ii libqt4-sql-mysql:amd64 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1 amd64 Qt 4 MySQL database driver
ii mysql-client 5.5.54-0+deb8u1 all MySQL database client (metapackage depending on the latest version)
ii mysql-client-5.5 5.5.54-0+deb8u1 amd64 MySQL database client binaries
ii mysql-common 5.5.54-0+deb8u1 all MySQL database common files, e.g. /etc/mysql/my.cnf
ii mysql-server 5.5.54-0+deb8u1 all MySQL database server (metapackage depending on the latest version)
ii mysql-server-5.5 5.5.54-0+deb8u1 amd64 MySQL database server binaries and system database setup
ii mysql-server-core-5.5 5.5.54-0+deb8u1 amd64 MySQL database server binaries
ii python-mysqldb 1.2.3-2.1 amd64 Python interface to MySQL
所以@Naincy你的想法是对的，我的MySql是由别的东西启动的。
最佳答案
通常，为了绕过此错误消息并进入MySQL，您可以编辑config.inc.php并临时注释controluser、controlpass和pmadab的行。不过，我不会这么做，因为你的两个MySQL服务器有冲突。
正如您所确定的，您已经通过apt和LAMPP安装了MySQL，这将导致各种各样的困难，另外，它们可能会因尝试在端口3306上启动而发生冲突。如果您拥有有价值的数据，那么应该导出它，然后我建议删除Debian打包的数据，因为您使用的是整个LAMPP堆栈，这意味着要一起工作。然后您可以启动LAMPP MySQL并尝试从phpMyAdmin连接，我想这对您会更好。
关于php - 几次重新安装LAMPP后，PHPmyadmin仍然给出错误，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/42173797/