Psalm is a static analysis tool for finding errors in PHP applications. - **v0.3.x** supports checking PHP 5.4 - 7.1 code, and requires **PHP 5.5+** to run. - **v0.2.x** supports checking PHP 5.4 - 7.0 code and requires **PHP 5.4+** to run. Check out the [wiki](https://github.com/vimeo/psalm/wiki) or [try a live demo](https://getpsalm.org/)! ## Quickstart Guide Install via [Composer](https://getcomposer.org/): ```bash composer require --dev "vimeo/psalm:dev-master" composer install ``` Add a `psalm.xml` config: ```bash cat > psalm.xml << EOF EOF ``` Then run Psalm with: ```bash ./vendor/bin/psalm ``` The above config is spartan, and will show you *all* possible errors, including many that are likely irrelevant to you. A more lenient config is provided [here](examples/psalm.default.xml).