Faker is a PHP library that generates fake data for you.
Highly opinionated mocking framework for PHP 5.3+
Put the awesome Faker lib into the DIC and populate your database with fake data.
Temporary (disposable/throwaway) email detection library. Covers 1987 fake email providers.
The easiest way to generate fake data in PHP
ZF2 useful tools
Dependency injection for global functions.
A fake Mailer for Laravel applications that takes the pain out of testing mail.
Mock Object library
Mocks, stubs, and spies for PHP.
Fake recipient for Avisota.
Allows the creation and seeding of fake Eloquent models
Fake PHP mcrypt extension to enable installing Slim 2.3.*
Faker framework, for generate every kind of fake data for test, database seed, mock responses, other
Allows DataObjects to self-populate intelligently using fake data
FakeSession class for Nette Framework
Phapi NullCache is a fallback cache package with a fake cache storage.
Fake data generator Laravel package
A shell to seed your database with fake and/or fixed data.
Fake login extension for Nette framework
Fake core classes for the BlueMvc PHP framework
Use Composer "replace" to fake out installing bower-asset dependencies that aren't really needed
Kamba fake authentication module for testing usage
Phony for Kahlan.
Phony for PHPUnit.