In this article, we will show you how to determine the active PHP version assigned to your domain and change it if necessary.
You can choose between different PHP versions and decide for yourself which version you want to use with which domain.
- Changing the PHP version may affect the functionality of your applications or scripts used with your domain. For applications not written by yourself, we recommend that you first check the manufacturer's specifications. In the event of a problem, however, you can revert to the previous PHP version at any time.
- Log in to 1&1 IONOS. We will automatically redirect you to the PHP settings page if you have a domain in your contract.
- You will now see an overview of your domains. The PHP Version column displays the active PHP version.
- If you want to change a domain or subdomain to a different version of PHP, click the domain you want to edit. Then select the desired PHP version and click Save.
Tip: You can also switch several domains to the same PHP version in one step. Simply check the desired domains in the overview and then click on Select PHP version.
The new PHP version is now activated. This may take a moment.
- Support for PHP 4.0, PHP 5.2, PHP 5.4, PHP 5.5 and PHP 7.0 has been discontinued by the PHP community. For PHP 5.6, the support ended on 12/31/2018. If you are still using old PHP versions or are dependent on them, we can only offer you technical support if you are using PHP Extended Support.
- We recommend that you always run your websites with a current PHP version. Currently this is 7.2. With PHP 7.2 you can use the most popular and proven applications (WordPress, Joomla, Drupal etc.) without any further compatibility problems. In addition to new features, newer PHP versions usually also offer performance improvements, which can be noticeable in the form of shorter loading or reaction times of the website.