Build Your Own PHP Framework

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40. Manually adding validation errors

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01. Setting up

01. Introduction

02. Composer and PSR-4 Autoloading

03. Bootstrapping and structure

04. Error reporting with Ignition

02. Container

05. Using a container

06. Adding service providers

07. Autowiring with reflection

08. Refactoring to a singleton

03. Application config

09. Building the Config class

10. Reading and merging config files

11. Registering service providers through config

12. Using env files

04. Routing and controllers

13. Everything starts with requests

14. Adding routing

15. Responding in routes

16. Cleaning up responding

17. Defining routes in a separate file

18. Creating a controller

19. Using services inside controllers

05. Views

20. Installing Twig

21. Rendering a view

22. Debugging in Twig

23. Creating a base layout

24. Page titles in Twig

25. Creating a Twig config helper

06. Database

26. Setting up and querying the database

27. Working with models

28. Creating an example user profile page

07. Authentication

29. Setting up Sentinel

30. Creating the registration flow

31. Registering and authenticating a user

32. Showing authenticated state

34. Logging out

08. CSRF Protection

35. Protecting routes with CSRF

36. Adding tokens to forms

09. Flashing messages

37. Basic session flashing

38. Creating a Twig helper and flashing globally

10. Validation

39. Validating the login form

40. Manually adding validation errors

41. Validating the registration form

42. Custom validation rules

11. Middleware

43. How middleware works

44. Adding auth middleware and grouping routes

45. Persisting old form data

12. Exception handling

46. Creating an exception handler

47. Custom 404 (and other error) views

48. Rendering views for CSRF errors

13. Pagination

49. Paginating with Eloquent

50. Building a pagination view with Twig

14. Global helpers

51. Registering functions with PSR-4

52. Container resolution helper

53. View and config helpers

54. Route generator helper

Transcript

00:00

OK, so let's cover adding manual validation messages when, for example, we log in and the credentials are incorrect. First of all, I've just realized that this copy and paste kept the email.

00:13

So we're going to go ahead and just change that to password. OK, let's go over and try and hit that again. And yet there we go. We get password must not be empty. OK, so if I enter my email address, but I fill in an incorrect password, we're just redirected back at the moment. All we need to do in the logging controller is just flash a message in here.

00:33

So we're going to do exactly the same thing that we did before and manually flash a message to errors. But what we're going to do is create our own structure to this, because we always know that we are using an email key to show the email error. We can just add a custom message in here. So we could say something like could not sign you in or log you in with those details.

00:59

And let's head over and try this out. So the validation works as usual. But if I enter an incorrect password, you can see that we still get this flashed with the validation. Of course, what you could also do is flash that general global message at the top if you wanted to change this up. But you can basically now just add any of these to your errors message back and have whatever you need to be shown in each of the fields.

54 episodes•4 hrs 45 mins•1 year ago

Overview

Starting completely from scratch, build a modern PHP framework with all the features you’d expect.

Whether you’re new to PHP or not, this is a great exercise for learning what happens under the hood, arming you with knowledge you can apply anywhere you use PHP.

We’ll cover routing, controllers, views, the container, accessing the database, models, authentication, config, CSRF protection, exception handling, pagination, validation, flashing messages and much more.

Let’s dive in and build a PHP framework, step-by-step!

Alex Garrett-Smith

Alex Garrett-Smith

Hey, I'm the founder of Codecourse!

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