Requirements

Recipe creation and installation

• PHP 8.2 or newer and the ZIP extension.
• Composer for package installation and dependency resolution.
• Doctrine DBAL 3.6 or 4.x, with the appropriate database driver for fixture loading.
• Symfony Filesystem and YAML 6.4, 7.x or 8.x as resolved by Composer.
• A host application that supplies dependency installation and migrations when applying archives.

The recipe package does not require Contao core, PHPUnit or browser tooling.

E2E tests

• PHP 8.2 or newer, Composer and the extensions required by the tested application.
• PHPUnit 10.5, 11.5, 12.x or 13.x. Newer PHPUnit versions require newer PHP versions, so choose a combination Composer can resolve.
• Node.js 20 or newer and installed Playwright browser binaries for browser tests.
• Playwright PHP 1.5 or newer within the package's Composer constraint.
• Supported Symfony components from the 6.4, 7.x or 8.x lines, subject to their PHP requirements.

Managed Edition tests also need Git, Docker with Linux containers or an administrative MySQL/MariaDB server, and Contao's required PHP extensions such as intl, mbstring and pdo_mysql. The recipe selects the Contao version. The testing package does not require a specific Contao bundle version.

Tests for your own application can start a local server or connect to an existing URL. Your project prepares application dependencies and database state. PHPUnit still runs in PHP when the application uses another language.

See Windows setup and CI setup for platform instructions. The Composer manifests remain authoritative for supported dependency constraints.