Sometimes you need to check a Composer package’s version at runtime, e.g., for backward compatibility or feature flags.

Using InstalledVersions

Composer 2’s built-in InstalledVersions class can query the version of any installed package:

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use Composer\InstalledVersions;

InstalledVersions::getVersion('laravel/framework');

References

• Composer Official Docs: InstalledVersions Runtime API — Complete method reference for the InstalledVersions class
• Composer GitHub Repository — Composer source code and changelog
• PHP Manual: Namespaces and use statements — PHP namespace fundamentals