PHPUnit

Definitions

1. The standard unit testing framework for PHP, inspired by JUnit. Provides assertions, test fixtures, mocking, and code coverage analysis. If you write PHP professionally, PHPUnit is non-negotiable.

   In plain English: The go-to tool for testing PHP code automatically — you write small tests that check if your functions produce the right results, and it runs them all for you.

   Example: "The CI pipeline runs 3,000 PHPUnit tests before any merge to main."

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