Blaine Schmeisser gives an overview of PHP quality assurance tools and techniques. He discusses unit testing frameworks like PHPUnit, mocking and stubbing libraries, browser testing with Behat, mocking file systems with vfsStream, debugging with Xdebug, static code analysis with PHP CodeSniffer, and documentation generation. He recommends using frameworks like Lithium, Zend Framework 2, Symfony, or WordPress to reduce code and using modules and Composer to share code.