For some time now, the buzz in the PHP community has been about the amazing performance increases that can be seen from simply updating an application from PHP 5.x to PHP 7 (for those just joining in, there is no PHP 6). Check out this infographic from Zend to see visualizations of the differences between PHP 5.6 and PHP 7 on common PHP frameworks, including Drupal and WordPress. For Drupal sites, measured performance gains with PHP 7 can be over 60%.
While PHP 7 is not yet available on UT Web, it is available on Pantheon for those using the CMS Hosting Platform service. And enabling PHP 7 on a Pantheon site is as simple as adding a `pantheon.yml` file to your site’s docroot and specifying the PHP version for the site as “7.0.”