A development tool that complains if you are running the wrong version of PHP.
In your project's composer.json, you must set your PHP constraint to a specific minor version of PHP.
# composer.json
"require": {
"php": "7.1.*",
Register the bundle in AppKernel.php for the dev and test environments only.
VersionWardenBundle will automatically detect your expected version by reading composer.lock. No further work is required.
If you run a version of PHP that doesn't match composer.lock, VersionWardenBundle will immediately display an error.
This works in the console and browser.