Before starting anything, you must think first about safety. Any modification made on a shop could break it, so you must make sure all your data has been backed up before going further. This basically implies saving two things: your files and your database.
We will give you all the details you may need to run an upgrade, but we can’t be held responsible for any damage caused to your shop during the process. That’s why we strongly recommend you to follow this backup step.
The first elements to backup are the files on the web server where you have deployed your PrestaShop. The PrestaShop folder not only contains the source code, but also your modules & themes, pictures, and all other resources needed to run your shop successfully.
To complete this step, your shop folder must be copied somewhere else. Although it can be simply copied on another folder on your server, making an additional copy of your files on another computer is a nice additional security measure. To do so, connect to your server using an FTP, SSH or RDP connection (depending on your server and hosting provider), copy the files in another location, then download them on your computer. Note that depending on the number of files and your internet connection, this may take a few hours to complete. But if you’re an advanced user and have a complete access to your server, the next part may help you go faster.
As said before, downloading the whole PrestaShop folder one file at a time will take a long time to complete. If you can run commands on your server, you can make a backup faster by compressing the whole content in a single archive file, then downloading this file locally.
On Windows-based servers, this requires a remote desktop access. Once logged on your remote environment, use the Windows explorer to reach your www folder and compress all its content into a ZIP file.
On Linux-based servers, you need to access your server terminal using SSH. Once logged in, reach your folder and use the following command to create a TAR file:
tar -czf <file_name>.tar <folder_to_save>
tar -czf backup.tar /var/www/html
When your archive is ready, you may copy it on your computer.
The database on which PrestaShop runs must be saved as well. There are many ways to get a dump of the database content, and we cannot cover all of them. Feel free to use your tools, we just cover the main ones here. You can consider your dump is complete when you get a SQL file with the structure AND the content of each table in it.
mysqldump is the most straightforward way to make a full backup of a specific database.
In a Windows or Linux terminal, run the following command to create a file
dump.sql with your database structure & data:
mysqldump yourdbname > dump.sql
yourdbname an example name for the PrestaShop database.
Your server is likely to require credentials. These details can also be provided as parameters:
mysqldump -h<IP_or_hostname> -u<user> -p db1 > dump.sql
If you do not remember your database name or credentials, you can find them in your configuration files:
More details about backup & recoveries with MySQL binaries can be found on the official documentation.
PhpMyAdmin, provided by several hosting providers, offers another way to get a complete dump of your database.
Log on your PhpMyAdmin interface, select the database where PrestaShop is installed and chose the “export” tab.
We advise to select the “custom” method, as it offers more options to customize your dump. Make sure all your tables, views, etc are selected for backup.
To get the same file content as the
mysqldump method, the following options should be checked as well:
Click of “Go”, wait for the dump to be generated, then download it.
As said at the beginning of this chapter, there are a lot of ways to connect to a MySQL server. Many different softwares also provide a dump or export option as well.