/doc/config.rst

Large files files are truncated, but you can click here to view the full file

.. index:: config.inc.php

.. _config:

Configuration
=============

All configurable data is placed in :file:`config.inc.php` in phpMyAdmin's
toplevel directory.  If this file does not exist, please refer to the
:ref:`setup` section to create one. This file only needs to contain the
parameters you want to change from their corresponding default value in
:file:`libraries/config.default.php` (this file is not intended for changes).

.. seealso::

    :ref:`config-examples` for examples of configurations

If a directive is missing from your file, you can just add another line with
the file. This file is for over-writing the defaults; if you wish to use the
default value there's no need to add a line here.

The parameters which relate to design (like colors) are placed in
:file:`themes/themename/scss/_variables.scss`. You might also want to create
:file:`config.footer.inc.php` and :file:`config.header.inc.php` files to add
your site specific code to be included on start and end of each page.

.. note::

    Some distributions (eg. Debian or Ubuntu) store :file:`config.inc.php` in
    ``/etc/phpmyadmin`` instead of within phpMyAdmin sources.

Basic settings
--------------

.. config:option:: $cfg['PmaAbsoluteUri']

    :type: string
    :default: ``''``

    .. versionchanged:: 4.6.5

        This setting was not available in phpMyAdmin 4.6.0 - 4.6.4.

    Sets here the complete :term:`URL` (with full path) to your phpMyAdmin
    installation's directory. E.g.
    ``https://www.example.net/path_to_your_phpMyAdmin_directory/``. Note also
    that the :term:`URL` on most of web servers are case sensitive (even on
    Windows). Don’t forget the trailing slash at the end.

    Starting with version 2.3.0, it is advisable to try leaving this blank. In
    most cases phpMyAdmin automatically detects the proper setting. Users of
    port forwarding or complex reverse proxy setup might need to set this.

    A good test is to browse a table, edit a row and save it. There should be
    an error message if phpMyAdmin is having trouble auto–detecting the correct
    value. If you get an error that this must be set or if the autodetect code
    fails to detect your path, please post a bug report on our bug tracker so
    we can improve the code.

    .. seealso:: :ref:`faq1_40`, :ref:`faq2_5`, :ref:`faq4_7`, :ref:`faq5_16`

.. config:option:: $cfg['PmaNoRelation_DisableWarning']

    :type: boolean
    :default: false

    Starting with version 2.3.0 phpMyAdmin offers a lot of features to
    work with master / foreign – tables (see :config:option:`$cfg['Servers'][$i]['pmadb']`).

    If you tried to set this
    up and it does not work for you, have a look on the :guilabel:`Structure` page
    of one database where you would like to use it. You will find a link
    that will analyze why those features have been disabled.

    If you do not want to use those features set this variable to ``true`` to
    stop this message from appearing.

.. config:option:: $cfg['AuthLog']

    :type: string
    :default: ``'auto'``

    .. versionadded:: 4.8.0

        This is supported since phpMyAdmin 4.8.0.

    Configure authentication logging destination. Failed (or all, depending on
    :config:option:`$cfg['AuthLogSuccess']`) authentication attempts will be
    logged according to this directive:

    ``auto``
        Let phpMyAdmin automatically choose between ``syslog`` and ``php``.
    ``syslog``
        Log using syslog, using AUTH facility, on most systems this ends up
        in :file:`/var/log/auth.log`.
    ``php``
        Log into PHP error log.
    ``sapi``
        Log into PHP SAPI logging.
    ``/path/to/file``
        Any other value is treated as a filename and log entries are written there.

    .. note::

        When logging to a file, make sure its permissions are correctly set
        for a web server user, the setup should closely match instructions
        described in :config:option:`$cfg['TempDir']`:

.. config:option:: $cfg['AuthLogSuccess']

    :type: boolean
    :default: false

    .. versionadded:: 4.8.0

        This is supported since phpMyAdmin 4.8.0.

    Whether to log successful authentication attempts into
    :config:option:`$cfg['AuthLog']`.

.. config:option:: $cfg['SuhosinDisableWarning']

    :type: boolean
    :default: false

    A warning is displayed on the main page if Suhosin is detected.

    You can set this parameter to ``true`` to stop this message from appearing.

.. config:option:: $cfg['LoginCookieValidityDisableWarning']

    :type: boolean
    :default: false

    A warning is displayed on the main page if the PHP parameter
    session.gc_maxlifetime is lower than cookie validity configured in phpMyAdmin.

    You can set this parameter to ``true`` to stop this message from appearing.

.. config:option:: $cfg['ServerLibraryDifference_DisableWarning']

    :type: boolean
    :default: false

    .. deprecated:: 4.7.0

        This setting was removed as the warning has been removed as well.

    A warning is displayed on the main page if there is a difference
    between the MySQL library and server version.

    You can set this parameter to ``true`` to stop this message from appearing.

.. config:option:: $cfg['ReservedWordDisableWarning']

    :type: boolean
    :default: false

    This warning is displayed on the Structure page of a table if one or more
    column names match with words which are MySQL reserved.

    If you want to turn off this warning, you can set it to ``true`` and
    warning will no longer be displayed.

.. config:option:: $cfg['TranslationWarningThreshold']

    :type: integer
    :default: 80

    Show warning about incomplete translations on certain threshold.

.. config:option:: $cfg['SendErrorReports']

    :type: string
    :default: ``'ask'``

    Sets the default behavior for JavaScript error reporting.

    Whenever an error is detected in the JavaScript execution, an error report
    may be sent to the phpMyAdmin team if the user agrees.

    The default setting of ``'ask'`` will ask the user everytime there is a new
    error report. However you can set this parameter to ``'always'`` to send error
    reports without asking for confirmation or you can set it to ``'never'`` to
    never send error reports.

    This directive is available both in the configuration file and in users
    preferences. If the person in charge of a multi-user installation prefers
    to disable this feature for all users, a value of ``'never'`` should be
    set, and the :config:option:`$cfg['UserprefsDisallow']` directive should
    contain ``'SendErrorReports'`` in one of its array values.

.. config:option:: $cfg['ConsoleEnterExecutes']

    :type: boolean
    :default: false

    Setting this to ``true`` allows the user to execute queries by pressing Enter
    instead of Ctrl+Enter. A new line can be inserted by pressing Shift+Enter.

    The behaviour of the console can be temporarily changed using console's
    settings interface.

.. config:option:: $cfg['AllowThirdPartyFraming']

    :type: boolean|string
    :default: false

    Setting this to ``true`` allows phpMyAdmin to be included inside a frame,
    and is a potential security hole allowing cross-frame scripting attacks or
    clickjacking. Setting this to 'sameorigin' prevents phpMyAdmin to be
    included from another document in a frame, unless that document belongs
    to the same domain.

Server connection settings
--------------------------

.. config:option:: $cfg['Servers']

    :type: array
    :default: one server array with settings listed below

    Since version 1.4.2, phpMyAdmin supports the administration of multiple
    MySQL servers. Therefore, a :config:option:`$cfg['Servers']`-array has been
    added which contains the login information for the different servers. The
    first :config:option:`$cfg['Servers'][$i]['host']` contains the hostname of
    the first server, the second :config:option:`$cfg['Servers'][$i]['host']`
    the hostname of the second server, etc. In
    :file:`libraries/config.default.php`, there is only one section for server
    definition, however you can put as many as you need in
    :file:`config.inc.php`, copy that block or needed parts (you don't have to
    define all settings, just those you need to change).

    .. note::

        The :config:option:`$cfg['Servers']` array starts with
        $cfg['Servers'][1]. Do not use $cfg['Servers'][0]. If you want more
        than one server, just copy following section (including $i
        increment) several times. There is no need to define full server
        array, just define values you need to change.

.. config:option:: $cfg['Servers'][$i]['host']

    :type: string
    :default: ``'localhost'``

    The hostname or :term:`IP` address of your $i-th MySQL-server. E.g.
    ``localhost``.

    Possible values are:

    * hostname, e.g., ``'localhost'`` or ``'mydb.example.org'``
    * IP address, e.g., ``'127.0.0.1'`` or ``'192.168.10.1'``
    * IPv6 address, e.g. ``2001:cdba:0000:0000:0000:0000:3257:9652``
    * dot - ``'.'``, i.e., use named pipes on windows systems
    * empty - ``''``, disables this server

    .. note::

        The hostname ``localhost`` is handled specially by MySQL and it uses
        the socket based connection protocol. To use TCP/IP networking, use an
        IP address or hostname such as ``127.0.0.1`` or ``db.example.com``. You
        can configure the path to the socket with
        :config:option:`$cfg['Servers'][$i]['socket']`.

    .. seealso::

        :config:option:`$cfg['Servers'][$i]['port']`,
        <https://dev.mysql.com/doc/refman/5.7/en/connecting.html>

.. config:option:: $cfg['Servers'][$i]['port']

    :type: string
    :default: ``''``

    The port-number of your $i-th MySQL-server. Default is 3306 (leave
    blank).

    .. note::

       If you use ``localhost`` as the hostname, MySQL ignores this port number
       and connects with the socket, so if you want to connect to a port
       different from the default port, use ``127.0.0.1`` or the real hostname
       in :config:option:`$cfg['Servers'][$i]['host']`.

    .. seealso::

        :config:option:`$cfg['Servers'][$i]['host']`,
        <https://dev.mysql.com/doc/refman/5.7/en/connecting.html>

.. config:option:: $cfg['Servers'][$i]['socket']

    :type: string
    :default: ``''``

    The path to the socket to use. Leave blank for default. To determine
    the correct socket, check your MySQL configuration or, using the
    :command:`mysql` command–line client, issue the ``status`` command. Among the
    resulting information displayed will be the socket used.

    .. note::

        This takes effect only if :config:option:`$cfg['Servers'][$i]['host']` is set
        to ``localhost``.

    .. seealso::

        :config:option:`$cfg['Servers'][$i]['host']`,
        <https://dev.mysql.com/doc/refman/5.7/en/connecting.html>

.. config:option:: $cfg['Servers'][$i]['ssl']

    :type: boolean
    :default: false

    Whether to enable SSL for the connection between phpMyAdmin and the MySQL
    server to secure the connection.

    When using the ``'mysql'`` extension,
    none of the remaining ``'ssl...'`` configuration options apply.

    We strongly recommend the ``'mysqli'`` extension when using this option.

    .. seealso::

        :ref:`ssl`,
        :ref:`example-google-ssl`,
        :config:option:`$cfg['Servers'][$i]['ssl_key']`,
        :config:option:`$cfg['Servers'][$i]['ssl_cert']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca_path']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ciphers']`,
        :config:option:`$cfg['Servers'][$i]['ssl_verify']`

.. config:option:: $cfg['Servers'][$i]['ssl_key']

    :type: string
    :default: NULL

    Path to the client key file when using SSL for connecting to the MySQL
    server. This is used to authenticate the client to the server.

    For example:

    .. code-block:: php

        $cfg['Servers'][$i]['ssl_key'] = '/etc/mysql/server-key.pem';

    .. seealso::

        :ref:`ssl`,
        :ref:`example-google-ssl`,
        :config:option:`$cfg['Servers'][$i]['ssl']`,
        :config:option:`$cfg['Servers'][$i]['ssl_cert']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca_path']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ciphers']`,
        :config:option:`$cfg['Servers'][$i]['ssl_verify']`

.. config:option:: $cfg['Servers'][$i]['ssl_cert']

    :type: string
    :default: NULL

    Path to the client certificate file when using SSL for connecting to the
    MySQL server. This is used to authenticate the client to the server.

    .. seealso::

        :ref:`ssl`,
        :ref:`example-google-ssl`,
        :config:option:`$cfg['Servers'][$i]['ssl']`,
        :config:option:`$cfg['Servers'][$i]['ssl_key']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca_path']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ciphers']`,
        :config:option:`$cfg['Servers'][$i]['ssl_verify']`

.. config:option:: $cfg['Servers'][$i]['ssl_ca']

    :type: string
    :default: NULL

    Path to the CA file when using SSL for connecting to the MySQL server.

    .. seealso::

        :ref:`ssl`,
        :ref:`example-google-ssl`,
        :config:option:`$cfg['Servers'][$i]['ssl']`,
        :config:option:`$cfg['Servers'][$i]['ssl_key']`,
        :config:option:`$cfg['Servers'][$i]['ssl_cert']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca_path']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ciphers']`,
        :config:option:`$cfg['Servers'][$i]['ssl_verify']`

.. config:option:: $cfg['Servers'][$i]['ssl_ca_path']

    :type: string
    :default: NULL

    Directory containing trusted SSL CA certificates in PEM format.

    .. seealso::

        :ref:`ssl`,
        :ref:`example-google-ssl`,
        :config:option:`$cfg['Servers'][$i]['ssl']`,
        :config:option:`$cfg['Servers'][$i]['ssl_key']`,
        :config:option:`$cfg['Servers'][$i]['ssl_cert']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ciphers']`,
        :config:option:`$cfg['Servers'][$i]['ssl_verify']`

.. config:option:: $cfg['Servers'][$i]['ssl_ciphers']

    :type: string
    :default: NULL

    List of allowable ciphers for SSL connections to the MySQL server.

    .. seealso::

        :ref:`ssl`,
        :ref:`example-google-ssl`,
        :config:option:`$cfg['Servers'][$i]['ssl']`,
        :config:option:`$cfg['Servers'][$i]['ssl_key']`,
        :config:option:`$cfg['Servers'][$i]['ssl_cert']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca_path']`,
        :config:option:`$cfg['Servers'][$i]['ssl_verify']`

.. config:option:: $cfg['Servers'][$i]['ssl_verify']

    :type: boolean
    :default: true

    .. versionadded:: 4.6.0

        This is supported since phpMyAdmin 4.6.0.

    If your PHP install uses the MySQL Native Driver (mysqlnd), your
    MySQL server is 5.6 or later, and your SSL certificate is self-signed,
    there is a chance your SSL connection will fail due to validation.
    Setting this to ``false`` will disable the validation check.

    Since PHP 5.6.0 it also verifies whether server name matches CN of its
    certificate. There is currently no way to disable just this check without
    disabling complete SSL verification.

    .. warning::

        Disabling the certificate verification defeats purpose of using SSL.
        This will make the connection vulnerable to man in the middle attacks.

    .. note::

        This flag only works with PHP 5.6.16 or later.

    .. seealso::

        :ref:`ssl`,
        :ref:`example-google-ssl`,
        :config:option:`$cfg['Servers'][$i]['ssl']`,
        :config:option:`$cfg['Servers'][$i]['ssl_key']`,
        :config:option:`$cfg['Servers'][$i]['ssl_cert']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca_path']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ciphers']`,
        :config:option:`$cfg['Servers'][$i]['ssl_verify']`

.. config:option:: $cfg['Servers'][$i]['connect_type']

    :type: string
    :default: ``'tcp'``

    .. deprecated:: 4.7.0

       This setting is no longer used as of 4.7.0, since MySQL decides the
       connection type based on host, so it could lead to unexpected results.
       Please set :config:option:`$cfg['Servers'][$i]['host']` accordingly
       instead.

    What type connection to use with the MySQL server. Your options are
    ``'socket'`` and ``'tcp'``. It defaults to tcp as that is nearly guaranteed
    to be available on all MySQL servers, while sockets are not supported on
    some platforms. To use the socket mode, your MySQL server must be on the
    same machine as the Web server.

.. config:option:: $cfg['Servers'][$i]['compress']

    :type: boolean
    :default: false

    Whether to use a compressed protocol for the MySQL server connection
    or not (experimental).

.. _controlhost:
.. config:option:: $cfg['Servers'][$i]['controlhost']

    :type: string
    :default: ``''``

    Permits to use an alternate host to hold the configuration storage
    data.

    .. seealso::

        :config:option:`$cfg['Servers'][$i]['control_*']`

.. _controlport:
.. config:option:: $cfg['Servers'][$i]['controlport']

    :type: string
    :default: ``''``

    Permits to use an alternate port to connect to the host that
    holds the configuration storage.

    .. seealso::

        :config:option:`$cfg['Servers'][$i]['control_*']`

.. _controluser:
.. config:option:: $cfg['Servers'][$i]['controluser']

    :type: string
    :default: ``''``

.. config:option:: $cfg['Servers'][$i]['controlpass']

    :type: string
    :default: ``''``

    This special account is used to access :ref:`linked-tables`.
    You don't need it in single user case, but if phpMyAdmin is shared it
    is recommended to give access to :ref:`linked-tables` only to this user
    and configure phpMyAdmin to use it. All users will then be able to use
    the features without need to have direct access to :ref:`linked-tables`.

    .. versionchanged:: 2.2.5
        those were called ``stduser`` and ``stdpass``

    .. seealso::

        :ref:`setup`,
        :ref:`authentication_modes`,
        :ref:`linked-tables`,
        :config:option:`$cfg['Servers'][$i]['pmadb']`,
        :config:option:`$cfg['Servers'][$i]['controlhost']`,
        :config:option:`$cfg['Servers'][$i]['controlport']`,
        :config:option:`$cfg['Servers'][$i]['control_*']`

.. config:option:: $cfg['Servers'][$i]['control_*']

    :type: mixed

    .. versionadded:: 4.7.0

    You can change any MySQL connection setting for control link (used to
    access :ref:`linked-tables`) using configuration prefixed with ``control_``.

    This can be used to change any aspect of the control connection, which by
    default uses same parameters as the user one.

    For example you can configure SSL for the control connection:

    .. code-block:: php

        // Enable SSL
        $cfg['Servers'][$i]['control_ssl'] = true;
        // Client secret key
        $cfg['Servers'][$i]['control_ssl_key'] = '../client-key.pem';
        // Client certificate
        $cfg['Servers'][$i]['control_ssl_cert'] = '../client-cert.pem';
        // Server certification authority
        $cfg['Servers'][$i]['control_ssl_ca'] = '../server-ca.pem';

    .. seealso::

        :config:option:`$cfg['Servers'][$i]['ssl']`,
        :config:option:`$cfg['Servers'][$i]['ssl_key']`,
        :config:option:`$cfg['Servers'][$i]['ssl_cert']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ca_path']`,
        :config:option:`$cfg['Servers'][$i]['ssl_ciphers']`,
        :config:option:`$cfg['Servers'][$i]['ssl_verify']`

.. config:option:: $cfg['Servers'][$i]['auth_type']

    :type: string
    :default: ``'cookie'``

    Whether config or cookie or :term:`HTTP` or signon authentication should be
    used for this server.

    * 'config' authentication (``$auth_type = 'config'``) is the plain old
      way: username and password are stored in :file:`config.inc.php`.
    * 'cookie' authentication mode (``$auth_type = 'cookie'``) allows you to
      log in as any valid MySQL user with the help of cookies.
    * 'http' authentication allows you to log in as any
      valid MySQL user via HTTP-Auth.
    * 'signon' authentication mode (``$auth_type = 'signon'``) allows you to
      log in from prepared PHP session data or using supplied PHP script.

    .. seealso:: :ref:`authentication_modes`

.. _servers_auth_http_realm:
.. config:option:: $cfg['Servers'][$i]['auth_http_realm']

    :type: string
    :default: ``''``

    When using auth\_type = ``http``, this field allows to define a custom
    :term:`HTTP` Basic Auth Realm which will be displayed to the user. If not
    explicitly specified in your configuration, a string combined of
    "phpMyAdmin " and either :config:option:`$cfg['Servers'][$i]['verbose']` or
    :config:option:`$cfg['Servers'][$i]['host']` will be used.

.. _servers_user:
.. config:option:: $cfg['Servers'][$i]['user']

    :type: string
    :default: ``'root'``

.. config:option:: $cfg['Servers'][$i]['password']

    :type: string
    :default: ``''``

    When using :config:option:`$cfg['Servers'][$i]['auth_type']` set to
    'config', this is the user/password-pair which phpMyAdmin will use to
    connect to the MySQL server. This user/password pair is not needed when
    :term:`HTTP` or cookie authentication is used
    and should be empty.

.. _servers_nopassword:
.. config:option:: $cfg['Servers'][$i]['nopassword']

    :type: boolean
    :default: false

    .. deprecated:: 4.7.0

        This setting was removed as it can produce unexpected results.

    Allow attempt to log in without password when a login with password
    fails. This can be used together with http authentication, when
    authentication is done some other way and phpMyAdmin gets user name
    from auth and uses empty password for connecting to MySQL. Password
    login is still tried first, but as fallback, no password method is
    tried.

.. _servers_only_db:
.. config:option:: $cfg['Servers'][$i]['only_db']

    :type: string or array
    :default: ``''``

    If set to a (an array of) database name(s), only this (these)
    database(s) will be shown to the user. Since phpMyAdmin 2.2.1,
    this/these database(s) name(s) may contain MySQL wildcards characters
    ("\_" and "%"): if you want to use literal instances of these
    characters, escape them (I.E. use ``'my\_db'`` and not ``'my_db'``).

    This setting is an efficient way to lower the server load since the
    latter does not need to send MySQL requests to build the available
    database list. But **it does not replace the privileges rules of the
    MySQL database server**. If set, it just means only these databases
    will be displayed but **not that all other databases can't be used.**

    An example of using more that one database:

    .. code-block:: php

        $cfg['Servers'][$i]['only_db'] = ['db1', 'db2'];

    .. versionchanged:: 4.0.0
        Previous versions permitted to specify the display order of
        the database names via this directive.

.. config:option:: $cfg['Servers'][$i]['hide_db']

    :type: string
    :default: ``''``

    Regular expression for hiding some databases from unprivileged users.
    This only hides them from listing, but a user is still able to access
    them (using, for example, the SQL query area). To limit access, use
    the MySQL privilege system.  For example, to hide all databases
    starting with the letter "a", use

    .. code-block:: php

        $cfg['Servers'][$i]['hide_db'] = '^a';

    and to hide both "db1" and "db2" use

    .. code-block:: php

        $cfg['Servers'][$i]['hide_db'] = '^(db1|db2)$';

    More information on regular expressions can be found in the `PCRE
    pattern syntax
    <https://www.php.net/manual/en/reference.pcre.pattern.syntax.php>`_ portion
    of the PHP reference manual.

.. config:option:: $cfg['Servers'][$i]['verbose']

    :type: string
    :default: ``''``

    Only useful when using phpMyAdmin with multiple server entries. If
    set, this string will be displayed instead of the hostname in the
    pull-down menu on the main page. This can be useful if you want to
    show only certain databases on your system, for example. For HTTP
    auth, all non-US-ASCII characters will be stripped.

.. config:option:: $cfg['Servers'][$i]['extension']

    :type: string
    :default: ``'mysqli'``

    .. deprecated:: 4.2.0

        This setting was removed. The ``mysql`` extension will only be used when
        the ``mysqli`` extension is not available. As of 5.0.0, only the
        ``mysqli`` extension can be used.

    The PHP MySQL extension to use (``mysql`` or ``mysqli``).

    It is recommended to use ``mysqli`` in all installations.

.. config:option:: $cfg['Servers'][$i]['pmadb']

    :type: string
    :default: ``''``

    The name of the database containing the phpMyAdmin configuration
    storage.

    See the :ref:`linked-tables`  section in this document to see the benefits of
    this feature, and for a quick way of creating this database and the needed
    tables.

    If you are the only user of this phpMyAdmin installation, you can use your
    current database to store those special tables; in this case, just put your
    current database name in :config:option:`$cfg['Servers'][$i]['pmadb']`. For a
    multi-user installation, set this parameter to the name of your central
    database containing the phpMyAdmin configuration storage.

.. _bookmark:
.. config:option:: $cfg['Servers'][$i]['bookmarktable']

    :type: string or false
    :default: ``''``

    Since release 2.2.0 phpMyAdmin allows users to bookmark queries. This
    can be useful for queries you often run. To allow the usage of this
    functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * enter the table name in :config:option:`$cfg['Servers'][$i]['bookmarktable']`

    This feature can be disabled by setting the configuration to ``false``.

.. _relation:
.. config:option:: $cfg['Servers'][$i]['relation']

    :type: string or false
    :default: ``''``

    Since release 2.2.4 you can describe, in a special 'relation' table,
    which column is a key in another table (a foreign key). phpMyAdmin
    currently uses this to:

    * make clickable, when you browse the master table, the data values that
      point to the foreign table;
    * display in an optional tool-tip the "display column" when browsing the
      master table, if you move the mouse to a column containing a foreign
      key (use also the 'table\_info' table); (see :ref:`faqdisplay`)
    * in edit/insert mode, display a drop-down list of possible foreign keys
      (key value and "display column" are shown) (see :ref:`faq6_21`)
    * display links on the table properties page, to check referential
      integrity (display missing foreign keys) for each described key;
    * in query-by-example, create automatic joins (see :ref:`faq6_6`)
    * enable you to get a :term:`PDF` schema of
      your database (also uses the table\_coords table).

    The keys can be numeric or character.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the relation table name in :config:option:`$cfg['Servers'][$i]['relation']`
    * now as normal user open phpMyAdmin and for each one of your tables
      where you want to use this feature, click :guilabel:`Structure/Relation view/`
      and choose foreign columns.

    This feature can be disabled by setting the configuration to ``false``.

    .. note::

        In the current version, ``master_db`` must be the same as ``foreign_db``.
        Those columns have been put in future development of the cross-db
        relations.

.. _table_info:
.. config:option:: $cfg['Servers'][$i]['table_info']

    :type: string or false
    :default: ``''``

    Since release 2.3.0 you can describe, in a special 'table\_info'
    table, which column is to be displayed as a tool-tip when moving the
    cursor over the corresponding key. This configuration variable will
    hold the name of this special table. To allow the usage of this
    functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['table\_info']` (e.g.
      ``pma__table_info``)
    * then for each table where you want to use this feature, click
      "Structure/Relation view/Choose column to display" to choose the
      column.

    This feature can be disabled by setting the configuration to ``false``.

    .. seealso:: :ref:`faqdisplay`

.. _table_coords:
.. config:option:: $cfg['Servers'][$i]['table_coords']

    :type: string or false
    :default: ``''``

    The designer feature can save your page layout; by pressing the "Save page" or "Save page as"
    button in the expanding designer menu, you can customize the layout and have it loaded the next
    time you use the designer. That layout is stored in this table. Furthermore, this table is also
    required for using the PDF relation export feature, see
    :config:option:`$cfg['Servers'][$i]['pdf\_pages']` for additional details.

.. config:option:: $cfg['Servers'][$i]['pdf_pages']

    :type: string or false
    :default: ``''``

    Since release 2.3.0 you can have phpMyAdmin create :term:`PDF` pages
    showing the relations between your tables. Further, the designer interface
    permits visually managing the relations. To do this it needs two tables
    "pdf\_pages" (storing information about the available :term:`PDF` pages)
    and "table\_coords" (storing coordinates where each table will be placed on
    a :term:`PDF` schema output).  You must be using the "relation" feature.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the correct table names in
      :config:option:`$cfg['Servers'][$i]['table\_coords']` and
      :config:option:`$cfg['Servers'][$i]['pdf\_pages']`

    This feature can be disabled by setting either of the configurations to ``false``.

    .. seealso:: :ref:`faqpdf`.

.. _designer_coords:
.. config:option:: $cfg['Servers'][$i]['designer_coords']

    :type: string
    :default: ``''``

    .. versionadded:: 2.10.0

        Since release 2.10.0 a Designer interface is available; it permits to
        visually manage the relations.

    .. deprecated:: 4.3.0

        This setting was removed and the Designer table positioning data is now stored into :config:option:`$cfg['Servers'][$i]['table\_coords']`.

    .. note::
        You can now delete the table `pma__designer_coords` from your phpMyAdmin configuration storage database and remove :config:option:`$cfg['Servers'][$i]['designer\_coords']` from your configuration file.

.. _col_com:
.. config:option:: $cfg['Servers'][$i]['column_info']

    :type: string or false
    :default: ``''``

    This part requires a content update!  Since release 2.3.0 you can
    store comments to describe each column for each table. These will then
    be shown on the "printview".

    Starting with release 2.5.0, comments are consequently used on the table
    property pages and table browse view, showing up as tool-tips above the
    column name (properties page) or embedded within the header of table in
    browse view. They can also be shown in a table dump. Please see the
    relevant configuration directives later on.

    Also new in release 2.5.0 is a MIME- transformation system which is also
    based on the following table structure. See :ref:`transformations` for
    further information. To use the MIME- transformation system, your
    column\_info table has to have the three new columns 'mimetype',
    'transformation', 'transformation\_options'.

    Starting with release 4.3.0, a new input-oriented transformation system
    has been introduced. Also, backward compatibility code used in the old
    transformations system was removed. As a result, an update to column\_info
    table is necessary for previous transformations and the new input-oriented
    transformation system to work. phpMyAdmin will upgrade it automatically
    for you by analyzing your current column\_info table structure.
    However, if something goes wrong with the auto-upgrade then you can
    use the SQL script found in ``./sql/upgrade_column_info_4_3_0+.sql``
    to upgrade it manually.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['column\_info']` (e.g.
      ``pma__column_info``)
    * to update your PRE-2.5.0 Column\_comments table use this:  and
      remember that the Variable in :file:`config.inc.php` has been renamed from
      :samp:`$cfg['Servers'][$i]['column\_comments']` to
      :config:option:`$cfg['Servers'][$i]['column\_info']`

      .. code-block:: mysql

           ALTER TABLE `pma__column_comments`
           ADD `mimetype` VARCHAR( 255 ) NOT NULL,
           ADD `transformation` VARCHAR( 255 ) NOT NULL,
           ADD `transformation_options` VARCHAR( 255 ) NOT NULL;
    * to update your PRE-4.3.0 Column\_info table manually use this
      ``./sql/upgrade_column_info_4_3_0+.sql`` SQL script.

    This feature can be disabled by setting the configuration to ``false``.

    .. note::

        For auto-upgrade functionality to work, your
        :config:option:`$cfg['Servers'][$i]['controluser']` must have ALTER privilege on
        ``phpmyadmin`` database. See the `MySQL documentation for GRANT
        <https://dev.mysql.com/doc/refman/5.7/en/grant.html>`_ on how to
        ``GRANT`` privileges to a user.

.. _history:
.. config:option:: $cfg['Servers'][$i]['history']

    :type: string or false
    :default: ``''``

    Since release 2.5.0 you can store your :term:`SQL` history, which means all
    queries you entered manually into the phpMyAdmin interface. If you don't
    want to use a table-based history, you can use the JavaScript-based
    history.

    Using that, all your history items are deleted when closing the window.
    Using :config:option:`$cfg['QueryHistoryMax']` you can specify an amount of
    history items you want to have on hold. On every login, this list gets cut
    to the maximum amount.

    The query history is only available if JavaScript is enabled in
    your browser.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['history']` (e.g.
      ``pma__history``)

    This feature can be disabled by setting the configuration to ``false``.

.. _recent:
.. config:option:: $cfg['Servers'][$i]['recent']

    :type: string or false
    :default: ``''``

    Since release 3.5.0 you can show recently used tables in the
    navigation panel. It helps you to jump across table directly, without
    the need to select the database, and then select the table. Using
    :config:option:`$cfg['NumRecentTables']` you can configure the maximum number
    of recent tables shown. When you select a table from the list, it will jump to
    the page specified in :config:option:`$cfg['NavigationTreeDefaultTabTable']`.

    Without configuring the storage, you can still access the recently used tables,
    but it will disappear after you logout.

    To allow the usage of this functionality persistently:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['recent']` (e.g.
      ``pma__recent``)

    This feature can be disabled by setting the configuration to ``false``.

.. _favorite:
.. config:option:: $cfg['Servers'][$i]['favorite']

    :type: string or false
    :default: ``''``

    Since release 4.2.0 you can show a list of selected tables in the
    navigation panel. It helps you to jump to the table directly, without
    the need to select the database, and then select the table. When you
    select a table from the list, it will jump to the page specified in
    :config:option:`$cfg['NavigationTreeDefaultTabTable']`.

    You can add tables to this list or remove tables from it in database
    structure page by clicking on the star icons next to table names. Using
    :config:option:`$cfg['NumFavoriteTables']` you can configure the maximum
    number of favorite tables shown.

    Without configuring the storage, you can still access the favorite tables,
    but it will disappear after you logout.

    To allow the usage of this functionality persistently:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['favorite']` (e.g.
      ``pma__favorite``)

    This feature can be disabled by setting the configuration to ``false``.

.. _table_uiprefs:
.. config:option:: $cfg['Servers'][$i]['table_uiprefs']

    :type: string or false
    :default: ``''``

    Since release 3.5.0 phpMyAdmin can be configured to remember several
    things (sorted column :config:option:`$cfg['RememberSorting']`, column order,
    and column visibility from a database table) for browsing tables. Without
    configuring the storage, these features still can be used, but the values will
    disappear after you logout.

    To allow the usage of these functionality persistently:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['table\_uiprefs']` (e.g.
      ``pma__table_uiprefs``)

    This feature can be disabled by setting the configuration to ``false``.

.. config:option:: $cfg['Servers'][$i]['users']

    :type: string or false
    :default: ``''``

    The table used by phpMyAdmin to store user name information for associating with user groups.
    See the next entry on :config:option:`$cfg['Servers'][$i]['usergroups']` for more details
    and the suggested settings.

.. config:option:: $cfg['Servers'][$i]['usergroups']

    :type: string or false
    :default: ``''``

    Since release 4.1.0 you can create different user groups with menu items
    attached to them. Users can be assigned to these groups and the logged in
    user would only see menu items configured to the usergroup they are assigned to.
    To do this it needs two tables "usergroups" (storing allowed menu items for each
    user group) and "users" (storing users and their assignments to user groups).

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the correct table names in
      :config:option:`$cfg['Servers'][$i]['users']` (e.g. ``pma__users``) and
      :config:option:`$cfg['Servers'][$i]['usergroups']` (e.g. ``pma__usergroups``)

    This feature can be disabled by setting either of the configurations to ``false``.

    .. seealso:: :ref:`configurablemenus`

.. _navigationhiding:
.. config:option:: $cfg['Servers'][$i]['navigationhiding']

    :type: string or false
    :default: ``''``

    Since release 4.1.0 you can hide/show items in the navigation tree.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['navigationhiding']` (e.g.
      ``pma__navigationhiding``)

    This feature can be disabled by setting the configuration to ``false``.

.. _central_columns:
.. config:option:: $cfg['Servers'][$i]['central_columns']

    :type: string or false
    :default: ``''``

    Since release 4.3.0 you can have a central list of columns per database.
    You can add/remove columns to the list as per your requirement. These columns
    in the central list will be available to use while you create a new column for
    a table or create a table itself. You can select a column from central list
    while creating a new column, it will save you from writing the same column definition
    over again or from writing different names for similar column.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['central_columns']` (e.g.
      ``pma__central_columns``)

    This feature can be disabled by setting the configuration to ``false``.

.. _designer_settings:
.. config:option:: $cfg['Servers'][$i]['designer_settings']

    :type: string or false
    :default: ``''``

    Since release 4.5.0 your designer settings can be remembered.
    Your choice regarding 'Angular/Direct Links', 'Snap to Grid', 'Toggle Relation Lines',
    'Small/Big All', 'Move Menu' and 'Pin Text' can be remembered persistently.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['designer_settings']` (e.g.
      ``pma__designer_settings``)

    This feature can be disabled by setting the configuration to ``false``.

.. _savedsearches:
.. config:option:: $cfg['Servers'][$i]['savedsearches']

    :type: string or false
    :default: ``''``

    Since release 4.2.0 you can save and load query-by-example searches from the Database > Query panel.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['savedsearches']` (e.g.
      ``pma__savedsearches``)

    This feature can be disabled by setting the configuration to ``false``.

.. _export_templates:
.. config:option:: $cfg['Servers'][$i]['export_templates']

    :type: string or false
    :default: ``''``

    Since release 4.5.0 you can save and load export templates.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['export_templates']` (e.g.
      ``pma__export_templates``)

    This feature can be disabled by setting the configuration to ``false``.

.. _tracking:
.. config:option:: $cfg['Servers'][$i]['tracking']

    :type: string or false
    :default: ``''``

    Since release 3.3.x a tracking mechanism is available. It helps you to
    track every :term:`SQL` command which is
    executed by phpMyAdmin. The mechanism supports logging of data
    manipulation and data definition statements. After enabling it you can
    create versions of tables.

    The creation of a version has two effects:

    * phpMyAdmin saves a snapshot of the table, including structure and
      indexes.
    * phpMyAdmin logs all commands which change the structure and/or data of
      the table and links these commands with the version number.

    Of course you can view the tracked changes. On the :guilabel:`Tracking`
    page a complete report is available for every version. For the report you
    can use filters, for example you can get a list of statements within a date
    range. When you want to filter usernames you can enter \* for all names or
    you enter a list of names separated by ','. In addition you can export the
    (filtered) report to a file or to a temporary database.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['tracking']` (e.g.
      ``pma__tracking``)

    This feature can be disabled by setting the configuration to ``false``.

.. _tracking2:
.. config:option:: $cfg['Servers'][$i]['tracking_version_auto_create']

    :type: boolean
    :default: false

    Whether the tracking mechanism creates versions for tables and views
    automatically.

    If this is set to true and you create a table or view with

    * CREATE TABLE ...
    * CREATE VIEW ...

    and no version exists for it, the mechanism will create a version for
    you automatically.

.. _tracking3:
.. config:option:: $cfg['Servers'][$i]['tracking_default_statements']

    :type: string
    :default: ``'CREATE TABLE,ALTER TABLE,DROP TABLE,RENAME TABLE,CREATE INDEX,DROP INDEX,INSERT,UPDATE,DELETE,TRUNCATE,REPLACE,CREATE VIEW,ALTER VIEW,DROP VIEW,CREATE DATABASE,ALTER DATABASE,DROP DATABASE'``

    Defines the list of statements the auto-creation uses for new
    versions.

.. _tracking4:
.. config:option:: $cfg['Servers'][$i]['tracking_add_drop_view']

    :type: boolean
    :default: true

    Whether a DROP VIEW IF EXISTS statement will be added as first line to
    the log when creating a view.

.. _tracking5:
.. config:option:: $cfg['Servers'][$i]['tracking_add_drop_table']

    :type: boolean
    :default: true

    Whether a DROP TABLE IF EXISTS statement will be added as first line
    to the log when creating a table.

.. _tracking6:
.. config:option:: $cfg['Servers'][$i]['tracking_add_drop_database']

    :type: boolean
    :default: true

    Whether a DROP DATABASE IF EXISTS statement will be added as first
    line to the log when creating a database.

.. _userconfig:
.. config:option:: $cfg['Servers'][$i]['userconfig']

    :type: string or false
    :default: ``''``

    Since release 3.4.x phpMyAdmin allows users to set most preferences by
    themselves and store them in the database.

    If you don't allow for storing preferences in
    :config:option:`$cfg['Servers'][$i]['pmadb']`, users can still personalize
    phpMyAdmin, but settings will be saved in browser's local storage, or, it
    is is unavailable, until the end of session.

    To allow the usage of this functionality:

    * set up :config:option:`$cfg['Servers'][$i]['pmadb']` and the phpMyAdmin configuration storage
    * put the table name in :config:option:`$cfg['Servers'][$i]['userconfig']`

    This feature can be disabled by setting the configuration to ``false``.

.. config:option:: $cfg['Servers'][$i]['MaxTableUiprefs']

    :type: integer
    :default: 100

    Maximum number of rows saved in
    :config:option:`$cfg['Servers'][$i]['table_uiprefs']` table.

    When tables are dropped or renamed,
    :config:option:`$cfg['Servers'][$i]['table_uiprefs']` may contain invalid data
    (referring to tables which no longer exist). We only keep this number of newest
    rows in :config:option:`$cfg['Servers'][$i]['table_uiprefs']` and automatically
    delete older rows.

.. config:option:: $cfg['Servers'][$i]['SessionTimeZone']

    :type: string
    :default: ``''``

    Sets the time zone used by phpMyAdmin. Leave blank to use the time zone of your
    database server. Possible values are explained at
    https://dev.mysql.com/doc/refman/5.7/en/time-zone-support.html

    This is useful when your database server uses a time zone which is different from the
    time zone you want to use in phpMyAdmin.

.. config:option:: $cfg['Servers'][$i]['AllowRoot']

    :type: boolean
    :default: true

    Whether to allow root access. This is just a shortcut for the
    :config:option:`$cfg['Servers'][$i]['AllowDeny']['rules']` below.

.. config:option:: $cfg['Servers'][$i]['AllowNoPassword']

    :type: boolean
    :default: false

    Whether to allow logins without a password. The default value of
    ``false`` for this parameter prevents unintended access to a MySQL
    server with was left with an empty password for root or on which an
    anonymous (blank) user is defined.

.. _servers_allowdeny_order:
.. config:option:: $cfg['Servers'][$i]['AllowDeny']['order']

    :type: string
    :default: ``''``

    If your rule order is empty, then :term:`IP`
    authorization is disabled.

    If your rule order is set to
    ``'deny,allow'`` then the system applies all deny rules followed by
    allow rules. Access is allowed by default. Any client which does not
    match a Deny command or does match an Allow command will be allowed
    access to the server.

    If your rule order is set to ``'allow,deny'``
    then the system applies all allow rules followed by deny rules. Access
    is denied by default. Any client which does not match an Allow
    directive or does match a Deny directive will be denied access to the
    server.

    If your rule order is set to ``'explicit'``, authorization is
    performed in a similar fashion to rule order 'deny,allow', with the
    added restriction that your host/username combination **must** be
    listed in the *allow* rules, and not listed in the *deny* rules. This
    is the **most** secure means of using Allow/Deny rules, and was
    available in Apache by specifying allow and deny rules without setting
    any order.

    Please also see :config:option:`$cfg['TrustedProxies']` for
    detecting IP address behind proxies.

.. _servers_allowdeny_rules:
.. config:option:: $cfg['Servers'][$i]['AllowDeny']['rules']

    :type: array of strings
    :default: array()

    The general format fo…