The PHP testing frameworks discussed include PHPUnit, Codeception, Storyplayer, SeleniumHQ, Behat, Atoum, SimpleTest, Phpspec, Peridot, and Kahlan. These frameworks cater to different needs such as unit testing, functional testing, acceptance testing, and behavior-driven development. They offer various benefits like code reusability, improved test efficiency, faster execution speed, and enhanced code coverage analysis. Each framework has its unique features, advantages, and installation processes. By choosing the right PHP testing framework, developers can streamline their testing process, increase productivity, and deliver high-quality software applications.