Updating to wordpress 2 7
Using the checklist below will help minimize the risk of issues when upgrading the PHP version, however, there is always a small chance of an error or issue after an upgrade due to the thousands of themes, plugins, and customizations available to Word Press.
Remember that you can always try the upgrade and downgrade if there’s an issue.
If your site’s PHP version is currently set to CGI, you may have at one point encountered performance issues with Fast CGI which prompted the change to CGI.
Typically you should choose Fast CGI as this offers faster performance for most sites.Make sure to include your Dream Press site name and the version you'd like to be upgraded to.Using an outdated version of Word Press core, plugins or themes isn’t ideal. While Word Press technically works with PHP 5.6 and above, you’re sacrificing performance and compatibility, plus you’re open to security vulnerabilities by using older PHP versions.However, it's highly recommended that you upgrade to PHP 7.1 or 7.2 as older versions will soon be removed completely from all Dream Host servers.A major issue with PHP 5.6 is that it consumes more memory than necessary and runs slower than newer versions.
Upgrading to PHP 7 is a quick and easy way to get more performance for your WP site and server.