psalm/docs/running_psalm/command_line_usage.md

Running Psalm

Once you've set up your config file, you can run Psalm from your project's root directory with

./vendor/bin/psalm

and Psalm will scan all files in the project referenced by <projectFiles>.

If you want to run on specific files, use

./vendor/bin/psalm file1.php [file2.php...]

Command-line options

Run with --help to see a list of options that Psalm supports.

Running Psalm faster

Psalm has a couple of command-line options that will result in faster builds:

• --threads=[n] to run Psalm’s analysis in a number of threads
• --diff which only checks files you’ve updated (and their dependents).
• --diff-methods which remembers Psalm’s output when scanning particular methods.

Running them together (e.g. --threads=8 --diff --diff-methods) will result in the fastest possible Psalm run.