Diligence

This website is heavily inspired by the work of Sebastian Bergmann for "The PHP Quality Assurance Toolchain".

Charity

A huge thanks to all the people who are maintaining one or more quality assurance projects for PHP:
Andrew Morrison, Anthony Ferrara, Arne Blankerts, Austin Morris, Benoit Pesty, Brian Scaturro, Chris Cornutt, Ciaran McNulty, Daniel Leech, Daniel St. Jules, Dariusz Rumiński, Dmitry Patsura, Edson Medina, Edward Z. Yang, Fabien Potencier, FriendsOfPHP, Frédéric Hardy, Garen Torikian, Greg Sherwood, Hari Kodungallur, Jakub Onderka, James Brooks, Jason Sweat, Jean-François Lépine, Jens A. Koch, Johannes Schmitt, Jordi Boggiano, Julien Bianchi, Konstantin Kudryashov, Kore Nordmann, Maks Rafalko, Manuel Pichler, Marc Morera, Marcello Duarte, Marcin Kurczewski, Marco Pivetta, Marcus Baker, Matthew Brown, Michael Bodnarchuk, Michael Haeuslmann, Michael Heap, Michał Brzuchalski, Mike van Riel, Nils Adermann, Nimish Pachapurkar, Ondřej Mirtes, Perrick Penet, Rasmus Lerdorf, Rick Kuipers, Robert Reiz, Sebastian Bergmann, Sergei Vanyushin, Stuart Herbert, Travis Swicegood, Wim Godden

Temperance

Even more tools can be found on the exakat repository.