Awesome

grumphp-php-compatibility

Check if files are compatible with X version of PHP.

grumphp.yml:

parameters:
    tasks:
        php_compatibility:
            testVersion: "7.3"
            triggered_by:  [php, inc, module, install]
    extensions:
        - wunderio\PhpCompatibilityTask\ExtensionLoader

Composer

composer require --dev wunderio/grumphp-php-compatibility