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Phan is a static analyzer for PHP. Phan prefers to avoid false positives and attempts to prove incorrectness rather than correctness. Phan looks for common issues and will verify type compatibility on various operations when type information is available or can be deduced. Phan has a good (but not comprehensive) understanding of flow control and can track values in a few use cases (e.g. arrays, integers, and strings). With Phan installed, you'll want to create a .phan/config.php file in your project to tell Phan how to analyze your source code. Phan 5 depends on PHP 7.2+ with the php-ast extension (1.0.16+ is preferred) and supports analyzing PHP version 7.0-8.1 syntax. Check that all methods, functions, classes, traits, interfaces, constants, properties and variables are defined and accessible. Check for type safety and arity issues on method/function/closure calls.
Features
- Check for PHP8/PHP7/PHP5 backward compatibility
- Check that all methods, functions, classes, traits, interfaces, constants, properties and variables are defined and accessible
- Check for type safety and arity issues on method/function/closure calls
- Check for features that weren't supported in older PHP 7.x minor releases
- Check for sanity with array accesses
- Check for type safety on binary operations
Project Samples
