1. Ca BundleLets you find a path to the system CA bundle, and includes a fallback to the Mozilla CA bundle.
2. SatisSimple static Composer repository generator - For a full private Composer repo use Private Packagist
3. SemverSemantic versioning utilities with the addition of version constraints parsing and checking.
7. PackagistPackage Repository Website - try https://packagist.com if you need your own -
9. Spdx LicensesTools for working with the SPDX license list and validating licenses.
12. pcrePCRE wrapping library that offers type-safe preg_* replacements.