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sebastianbergmann/phpunit

PHPUnit is a programmer-oriented unit testing framework for PHP, following the xUnit architecture.

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What is it?

PHPUnit is a unit testing framework for PHP projects. It follows the xUnit architecture, so tests are written as classes with methods that make assertions about code behavior, and the framework runs them and reports results.

It is distributed as a single PHAR file with all dependencies bundled, which can be downloaded and run directly with PHP. It can also be installed with Composer, the standard PHP dependency manager.

The project is maintained by Sebastian Bergmann and depends on a set of companion packages for code coverage, file iteration, and code analysis that are developed in the same ecosystem.

Key features

  • 01Follows the xUnit architecture for writing unit tests in PHP.
  • 02Distributed as a self-contained PHAR file with all dependencies bundled.
  • 03Installable via Composer.
  • 04Supports code coverage reporting through companion packages.

Use cases

  • Writing unit tests for PHP applications and libraries.
  • Running automated test suites in continuous integration pipelines.
  • Measuring test coverage of PHP codebases.

Quick start

  1. 1

    Download the PHAR archive with wget

    wget https://phar.phpunit.de/phpunit-X.Y.phar
  2. 2

    Check the installed version

    php phpunit-X.Y.phar --version

Things to know

  • The README's example URL uses a placeholder version (X.Y) that you must replace with a real release number.

In collections

Testing frameworks & test automation tools

Topics

#php#testing#unit-testing#xunit#code-coverage#phpunit#testing-tools

FAQ

What is phpunit?
PHPUnit is a programmer-oriented unit testing framework for PHP, following the xUnit architecture. PHPUnit is a unit testing framework for PHP projects. It follows the xUnit architecture, so tests are written as classes with methods that make assertions about code behavior, and the framework runs them and reports results.
Is phpunit free to use? What license does it have?
phpunit is open source under the BSD-3-Clause license. Check the license terms before using it in commercial products.
Is phpunit still maintained?
Actively maintained. The last commit to phpunit was on Oct 24, 2026.
What can I use phpunit for?
Writing unit tests for PHP applications and libraries. Running automated test suites in continuous integration pipelines. Measuring test coverage of PHP codebases.
How do I install phpunit?
Download the PHAR archive with wget: wget https://phar.phpunit.de/phpunit-X.Y.phar Check the installed version: php phpunit-X.Y.phar --version
Where can I get phpunit?
The source code and installation instructions are on GitHub: https://github.com/sebastianbergmann/phpunit

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