π Learn To Test PHP - Including Laravel and Symfony Projects

"I want to hit the like button for every test passed. Thanks, the best tutorial on this subject."
Samuel Ferreira

Master Testing in PHP - From Fundamentals to Real-World Projects
Writing tests isnβt just a nice-to-have...itβs the key to building reliable, maintainable, and professional-grade PHP applications. Whether you're working with legacy code or building something new, strong testing skills help you move faster and with confidence.
In this hands-on course, you'll learn how to write effective tests in vanilla PHP, then apply everything youβve learned in real-world Laravel and Symfony projects.
By the end of this course, youβll be confident in:
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Writing unit and integration tests in plain PHP
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Refactoring code for testability
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Using mocks, stubs, and data providers
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Testing in Laravel
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Testing in Symfony
Every lesson includes clear explanations, annotated code, and hands-on practice.
Whether you're trying to improve legacy code, build a robust test suite, or just level up your PHP skills, this course gives you the practical foundation you need to test with confidence.
See for yourself - join today and start writing tests that give you trust in your code π
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50+ practical lessons
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Video and text format - learn your way
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Download the full course as a PDF
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All code examples included
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Lifetime access
π Certificate of achievement
π€ 30-day money-back guarantee
By the end of the course, youβll have a complete understanding of these ESSENTIALSβ¦
π₯ Test-Driven Development (TDD) β Writing tests first to guide cleaner, more maintainable code
π§ͺ PHPUnit Mastery β Building confidence with real-world unit, integration, and feature tests
π Dependency Injection β Making your code test-friendly and flexible from day one
π¦ Mocking & Stubs β Replacing real services with fakes to speed up and stabilize tests
π Data Providers β Testing multiple scenarios cleanly with minimal duplication
β οΈ Exception Testing β Verifying failure states and edge cases without fear
π― Assertions Deep Dive β Using PHPUnitβs most powerful assertions to test what matters
π Organizing Tests β Structuring your test suite for readability and maintainability
π Testing in Laravel β Feature tests, HTTP fakes, model factories, database assertions
π§± Testing in Symfony β Functional tests, kernel bootstrapping, and container access
π§° Refactoring for Testability β Adapting legacy code without rewriting it all
π¦ Integration Tests β Verifying real behavior across multiple layers of your app
π Static Analysis + Tests β Combining tests with tools like PHPStan for rock-solid code
π‘ Testing Without a Framework β Building skills you can use in any PHP project
π§ͺ Testing APIs β Sending requests, asserting responses, and mocking 3rd-party services
β± Speeding Up Test Suites β Keeping your tests fast and reliable as your app grows
π Real-World Examples β Testing actual services, workflows, and edge cases
Testing Mindset β Knowing what to test, what to skip, and how to test with confidence
β¨ PLUS MUCH MORE! β¨
Check Out These Example Vids From The Course
Your First Test
Now that PHPUnit is installed, itβs time to write your first test. Letβs walk through the basics of creating a test class, writing an assertion, and running it.
Configuring PHPUnit
Let's see how to configure PHPUnit from scratch, including the test bootstrap file and XML config, so you can run tests with a single command.
Testing Errors and Exceptions
External services are unpredictable. Your code should be prepared for failure - and your tests should confirm it behaves correctly when things go wrong.
Refactoring for Testability
In this lesson, weβll walk through a real-world scenario: we start with working code, try to test it, hit a wall, and refactor just enough to make the test possible.
Testing Form Validation
Let me show you how to ensure that the form behaves correctly when the user submits invalid data...for example, leaving the email field blank or not ticking the consent checkbox.
Database Integration Tests
In this lesson, we put theory into practice by writing feature tests that interact directly with the database.
Frequently Asked Questions (FAQs)
(Please email me at [email protected] with any questions. We reply within 48 hours)
FAQs
Q. Do I need to be an expert in Laravel or Symfony?
A. Not at all. Youβll need some basic familiarity with either Laravel or Symfony (whichever section you're following), but I walk you through every step with real examples and clear explanations.
Q. Is this course beginner-friendly?
A. Yes - especially for beginners whoβve never written tests before. But even if youβve done a bit of testing, youβll find deeper patterns, better structure, and practical techniques that go way beyond basic assertions.
Q. Will I have lifetime access?
A. Absolutely. One-time payment, and the course is yours forever - including all future updates.
Q. Who is this course for?
A. This course is for any PHP developer who wants to write reliable, testable code - especially in modern Laravel or Symfony apps.
Even if you've never touched PHPUnit or Pest before, you'll be able to follow along. If you're already familiar with testing but want to level up with real-world workflows, this course will show you how to structure your apps and tests in a way thatβs scalable and maintainable.
Whether youβre a Laravel developer, a Symfony user, or just looking to understand PHP testing in a hands-on way, this course is built to be clear, practical, and empowering.

β
50+ practical lessons
β
Video and text format - learn your way
β
Download the full course as a PDF
β
All code examples included
β
Lifetime access
π Certificate of achievement
π€ 30-day money-back guarantee
Here is what people have said about my previous Testing PHP course
Gary Clarkeβs teaching way is crystal clear and complete.- Lorenzo Sequi
Great course. Seen intro on youtube and decide buy a full. Thanks! -Anton Kulinich
In-depth knowledge presented in a comprehensive way; good examples; well explained; I learned a lot - Martin Komischke
I like your courses and style. - Raci
Best tutorial on this topic. Ilian Karasimirov
This course is very practical - Vakhtang
Very, very interesting and helpful - Ruslan
Course is clear, direct and easy to follow, even if one didn't use testing in the past - Richard
This is very useful course - Muhammad Nadeem
I didn't ever use phpunit because it was so hard to understand and figure out. This sets it up to be a success from the start to do TDD - Mr J
This course is very helpful in my php career - Asadullah
In depth course with great real life examples. Delivery of content is engaging and enjoyable - Joshua Caine
Really excellent course! - Brandon Oakley
Detailed in-depth premium content. Worth every penny - Janroe
Unit testing has been a low point in my professional PHP career the last few years. Have not found decent training anywhere. So glad to have found this course. - Karl Zipser
The course delivers a lot of specific knowledge that is not found anywhere else and the focus on complicated tests is very nice. The fact that the course keeps getting updated is a bonus. Eduardo
This course has clear explanations and Gary has the patience to explain every detail, which I think is very important. Demian
I like all your videos, great work. Keep rocking! Thank you for everything. Gokul jadhav.g
I want to hit the like button for every test passed. Thanks for the best tutorial available on this subject. Samuel Ferreira
You explain the Mock in unittest with very easy understanding, you have reproduced different use cases that are very important to understand!! Thank you so much! εͺζ£ηε»ε’
I have ADHD and have trouble with getting comfortable with tutorial styles and formats. Your video here is just bliss to me. Thank you thank you! Please don't stop making videos! Sofascialistadankula Megadonakeratosis
Clear and detailed. - Piero Recchia
The testing PHP course is long, but very good and amazingly informative. Testing is something that has always eluded me, so the course has definitely given me a grounding and something I can/will refer back to. Thanks for the course Gary and your other OOP course, they have been excellent. - Jonathon Wood
Everything is perfect with this course. I am watching it for my team and am pretty sure they will love it - Mathieu
I just appreciate all of Gary's work!!!!!! - Karyna
Good explanations, concrete and diverse cases - Mikaidou
This is what people have had to say about my other courses.
This is perfect! - Unjoined
You have a great way of explaining OOP - Locoplata
This is one of the best courses I have ever done. You have a gift for teaching. Your training has given me very valuable context for all things I knew, corrected some stuff I did incorrectly, and has taught me innumerable new things. - Mark Thijssen
Making me enjoy coding again. - Drew Hinde
Gary has deep knowledge and he is following the best practices. I have no suspicions about learning non-useful nor obsolete techniques. It is essential to have work / code discipline and he has it and kind of routing you to have the same. - Burak
Gary has a patient delivery style, and I can understand him. I also appreciate that code for the video is provided, with each video, because I like to spend time testing and changing that code to get further into it. - Karl Zipser
Well explained step by step approach - Takunda Chibanda
The way of teaching is so good with real time examples. There is also engaging activities - Lokith S
Information delivered clearly and in a well-structured way - Sim
This course is fantastic! I'm really looking forward to watching the rest of the course. Thanks a million Gary! - Michael Gibbs
Well structured and taught - Suleyman Solak
Great tutorial! - Fh Ndiritu
It's much more pleasant to follow than most other courses I have tried. - Mick Amato
Thanks for this video, been watching it for the 2nd time and I can't even feel the time goes by - Lexer Quine
I won't lie, I've watched a lot of php oop course and this is the best!! Thank you king - Yasser Latrach
PHP is making sense and I can apply what I am learning at my job - Dee
Very engaging and easy to understand the concepts - Luciano
I'm very happy with the course and the instructor. - Paulo
Gary explains OOP with PHP very clearly and is easy to understand. I think it's simply great - thanks for creating it!! - Nicolas Alexander Rau
This course is a true gem! It's the first time I watched a 3h course and felt I really understood the concepts. Thank you so much Gary! Looking forward to the full course:) - Giulia Pizzignacco
I saw all the videos of oriented object programming and they were awesome! Great content - Arius
Great stuff for OOP in PHP for beginners and great reminders for other Devs. - TomTom Shaylash
Excellent course delivered by a knowledgeable and engaging content creator. Highly recommended - Drew Hinde
I have learnt so much new information which helps me to write efficient php (oop) code. I am very thankful to Gary for providing such quality content - Ridwanullah Raufi
I'm very pleased with the way Gary explains everything. - Rob Spruyt
I'm enjoying the clear English of Gary, well spoken and succinct explanation of his code. - James
Exactly what I needed for my level of coding, I can create crud applications in PHP, but OOP is completely new to me. - Tom
Sufficiently long sections to be able to take in the information, it makes it easier to understand. Very good explanations. - Mats Akebrand
I have had an extremely positive experience with this course, so Mr Clarke had definitely earned a perfect 5 stars from me! This course has helped me to understand how OOP works SO MUCH better than I previously did. I 100% understand all of his examples. - Jeffrey Carter
Excellent course, interesting and engaging - Clive
Thank you so much! Appreciate your hard work - Paul Toma
Great work. Waiting for next videos - Alwin Augustin
Beautiful work! - Mohammed B
Great work. Thank you Sir! - Yusuf Aliya
Great video! Thanks so much - Ck
Interesting tutorial, thanks for all! - Mdazhardware
Thanks, awesome work!- Hamad Adel
Great work!- Houssem Rahrah
Thanks for your time we appreciate it!- Mamadou Aly Sy
Great!- Sergey Vasko
Nice course- Kennedy Muthui
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Here's a List Of The Course Lessons
Check Out FREE Previews
- Introduction
- Project Setup (4:48)
- What We Will Test + Rendering the View
- Pest Feature Tests
- How Laravel Handles Requests (and How Your Tests Fake It)
- Larastan (3:59)
- Route::view() method (1:52)
- Form Validation (9:04)
- Marking Tests as Todo in Pest
- Testing Form Validation (6:09)
- Models, Migrations, and Factories (6:54)
- Creating Database Records (3:40)
- Feature Testing with the Database
- Database Integration Tests (6:27)
- Laravel Validation Rules: Whatβs Possible?
- Pest Datasets (8:10)
- Tagging Subscriptions (3:42)
- Laravel Mailables
- Sending Emails (8:00)
- Laravel Facades
- Email Confirmation Testing (6:34)
- Sending Outgoing HTTP Requests (9:33)
- Testing Outgoing HTTP Requests (6:00)
- Laravel Spies
- Testing Partial Failures (10:27)
- Manual Testing (3:20)
- Introduction
- Project Setup (2:51)
- What We Will Test (3:14)
- Understanding Routing in Symfony
- Twig Files and Rendering Views (5:19)
- Understanding the WebTestCase Class
- Symfony Application Tests (7:25)
- Handling Form Submissions (2:54)
- Redirect Responses (3:41)
- Testing Redirects (4:27)
- Doctrine Entities and Migrations (7:54)
π Your PHP Journey Starts Here: Follow the Proven Roadmap πΊοΈ
All of my videos come with subtitles in your language

Who Am I?
Hello and thank you so much for checking out my work. My name is Gary Clarke and I'm a software developer with many years experience, primarily in PHP. I started creating video tutorials during lockdown in 2020 because I wanted the challenge of being able to explain complex / technical subjects to others in a way which is easy to understand and remember.
At this moment in time, my videos have been watched over a million times and I intend to keep creating new and improved content and teaching more and more new people. It would be my pleasure to see you on the inside of one of my courses.