[](https://php.package.health/packages/phpfn/immutable/1.0.0)
No required dependencies.
5 total, 3 outdated
| Package | Required | Latest | Status | |
|---|---|---|---|---|
| phpunit/phpunit | The PHP Unit Testing framework. | ^7.2|^8.0 | 11.4.3 | outdated |
| sensiolabs/security-checker | A security checker for your composer.lock | ^6.0 | v6.0.3 | up to date |
| squizlabs/php_codesniffer | PHP_CodeSniffer tokenizes PHP, JavaScript and CSS files and detects violations of a defined set of coding standards. | ^3.5 | 3.11.0 | up to date |
| symfony/var-dumper | Provides mechanisms for walking through any arbitrary PHP variable | ~4.3|~5.0 | v7.1.8 | outdated |
| vimeo/psalm | A static analysis tool for finding errors in PHP applications | ^3.6 | 5.26.1 | outdated |