psalm 命令

常用示例

说明

psalm is a static analysis tool for PHP that finds bugs and enforces type safety. It understands PHP type hints and PHPDoc annotations. Error levels range from 1 (strictest) to 9 (most permissive). Higher levels allow more potential issues, suitable for legacy codebases. Configuration in psalm.xml defines analysis scope, excluded files, and issue severity. Project-specific settings enable gradual adoption. Baselines record existing issues to ignore. New code must pass analysis while legacy problems can be addressed over time. The alter mode automatically fixes certain issues like adding return types or parameter types. This accelerates migration to stricter typing. Psalm understands complex PHP patterns including generics, union types, and template types through PHPDoc syntax.

参数

--level _N_

Error level (1-9, where 1 is strictest).

--config, -c _FILE_

Configuration file.

--init

Initialize psalm.xml.

--set-baseline _FILE_

Generate baseline file.

--use-baseline _FILE_

Use baseline file.

--ignore-baseline

Ignore baseline.

--show-info

Show info-level issues.

--output-format _FMT_

Output format (console, json, xml, etc.).

--alter

Modify files to fix issues.

--issues _LIST_

Issues to fix with --alter.

--threads _N_

Parallel analysis threads.

--memory-limit _SIZE_

Memory limit.

--diff

Only analyze files changed since last run.

--taint-analysis

Enable taint analysis to detect security vulnerabilities in data flow.

--clear-cache

Clear cache.

--stats

Show type coverage statistics.