To ensure that your server’s PHP version is compatible with the WordPress version you’re rolling back to, follow these steps:
- Check WordPress PHP Requirements: First, determine the PHP version requirements for the WordPress version you’re rolling back to. WordPress.org provides a list of PHP versions supported by each WordPress release. You can find this information on the WordPress.org website or in the release notes for the specific WordPress version.
- Verify Your Current PHP Version: Check the PHP version currently running on your server. This can usually be done through your hosting control panel or by creating a PHP file with the following code and accessing it through your browser:
<?php echo 'Current PHP version: ' . phpversion(); ?>
This will display the current PHP version installed on your server.
- Compare PHP Versions: Compare the PHP version required by the WordPress version you’re rolling back to with the PHP version currently running on your server. If the required PHP version is lower than the current version, you may need to downgrade your PHP version to ensure compatibility.
- Downgrade PHP Version (If Necessary): If your server’s PHP version is higher than the required version for the WordPress version you’re rolling back to, you’ll need to downgrade PHP. This process can vary depending on your hosting environment. For example, Kinsta customers can easily switch PHP versions from their MyKinsta dashboard. If you’re not using Kinsta or need to downgrade to a version not available through your hosting’s control panel, you may need to downgrade PHP using the command line, which is a more advanced process and carries more risks.
- Consider Plugin and Theme Compatibility: Ensure that all your plugins and themes are compatible with the WordPress version you’re rolling back to. Some plugins and themes may not be compatible with older PHP versions, so you may need to downgrade these as well or find alternatives that are compatible with the PHP version you’re using.
- Test Your Site: After downgrading PHP and rolling back WordPress, thoroughly test your site to ensure everything works as expected. This includes checking functionality, performance, and security.
By following these steps, you can ensure that your server’s PHP version is compatible with the WordPress version you’re rolling back to, minimizing the risk of compatibility issues and ensuring a smooth rollback process.
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