As reported in the Drupal forums, it appears that Drupal 8 will require PHP 7.0 or higher starting March 6, 2019. WordPress, in contrast, runs on older PHP versions while PHP 7.2 is recommended. It’s not an apples to apples comparison since Drupal 8 has a smaller marketshare (not to mention other factors involved), but catching up WordPress is still important as we move forward with PHP 7.x.
