Configuration files¶
The configuration files LocalConfiguration.php
and
AdditionalConfiguration.php
are located in the directory
public/typo3conf/ in Composer-based
installations. In legacy installations they are located in
typo3conf/
.
The most important configuration file is
LocalConfiguration.php
. It contains local settings of the
main global PHP array $GLOBALS['TYPO3_CONF_VARS']
, crucial settings
like database connect credentials are in here. The file is managed by the
Admin Tools.
The settings in the LocalConfiguration.php
can be overridden in the
AdditionalConfiguration.php
file, which is never touched by TYPO3
internal management tools. Be aware that having settings within
AdditionalConfiguration.php
may prevent the system from performing
automatic upgrades and should be used with care and only if you know what
you are doing.