If you notice that your WordPress hosting provider is not running PHP 7, but has it available to its users, you may want to consider making a WordPress PHP version change so you can benefit from all of PHP 7’s features. However, in order to avoid breaking your site, you should make sure all of your site’s themes and plugins are compatible.
To check for WordPress PHP version compatibility, you can use another simple plugin called PHP Compatibility Checker.
Source : wpbuffs.com
