Legacy installations: Directory structure¶
The structure below describes the directory structure in a legacy TYPO3 installation without Composer. For the structure in a Composer-based installation see Composer-based installations: Directory structure.
Files on project level¶
This folder contains the main entry script index.php
and might contain
publicly available files like a robots.txt
and files needed for the
server configuration like a .htaccess
file.
Directories in a typical project¶
fileadmin/
¶
This is a directory in which editors store files. It is used for the same files like public/fileadmin/ in the Composer-based directory structure.
typo3/
¶
Among others, this directory contains the two PHP files for accessing the TYPO3
backend (typo3/index.php
) and install tool (typo3/install.php
).
typo3/sysext/
¶
All system extensions, supplied by the TYPO3 Core, are stored here.
typo3_source/
¶
It is a common practice in legacy installations to use symlinks to quickly
change between TYPO3 Core versions. In many installations you will find a symlink or folder
called typo3_source
that contains the folders typo3/,
and vendor/ and the file index.php
. In this case,
those directories and files only symlink to typo3_source
. This way
the Core can be updated quickly by changing the symlink.
Assuming your webroot is a directory called public
you could have
the following symlink structure:
typo3_src-12.0.0
typo3
vendor
index.php
public
fileadmin
typo3 -> typo3_src/typo3
typo3_src -> ../typo3_src-12.0.0
typo3conf
typo3temp
vendor -> typo3_src/vendor
index.php -> typo3_src/index.php
typo3conf/
¶
Amongst others, this directory contains the files LocalConfiguration.php
and
AdditionalConfiguration.php
. See chapter
Configuration files for details.
This path can be retrieved from the Environment API, see getConfigPath().
typo3conf/autoload/
¶
Contains autoloading information. The files are updated each time an extension is installed via the Extension Manager.
typo3conf/ext/
¶
Directory for third-party and custom TYPO3 extensions. Each subdirectory contains one extension. The name of each directory must be the extension key or the extension will not be loaded directly. You can put or symlink custom extensions and sitepackages here.
See extension files locations for more information on how the extensions are structured.
typo3conf/l10n/
¶
Directory for extension localizations. Contains all downloaded translation files.
This path can be retrieved from the Environment API, see getLabelsPath().
typo3conf/sites/
¶
Contains subfolders for each site configuration.
typo3temp/
¶
Directory for temporary files. It contains subdirectories (see below) for temporary files of extensions and TYPO3 components.
Attention
Although it is a most common understanding in the TYPO3 world that
typo3temp/
can be removed at any time, it is considered
bad practice to remove the whole folder. Developers should selectively
remove folders relevant to the changes made.
typo3temp/assets/
¶
Directory for temporary files that should be publicly available (e.g. generated images).
typo3temp/var/
¶
Directory for temporary files that should not be accessed through the web (cache, log, etc).