Composer is a tool for dependency management in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you.https://getcomposer.org/ You can install ShowDoc by Composer automatically. - New installation Change to web directory(e.g:/var/www/html/)and execute: ``` composer create-project showdoc/showdoc ``` There will be a folder name "showdoc".Open your browser and visit http://your-domain.com/showdoc/install/ (change to your servser's address) to initialize ShowDoc. - Upgrade Stop apache or nginx , and move showdoc folder to bakup ``` mv showdoc showdoc_backup ``` Then flollow the "New installation" guide to install ShowDoc .After that ,move db file and pictures from old folder to new folder. ``` rm showdoc/Sqlite/showdoc.db.php cp showdoc_backup/Sqlite/showdoc.db.php showdoc/Sqlite/showdoc.db.php rm -r showdoc/Public/Uploads/ cp -r showdoc_backup/Public/Uploads/ showdoc/Public/ ``` Open your browser and visit http://your-domain.com/showdoc/index.php?s=/home/update/db (change to your servser's address) to update db.