Getting started with CodeIgniter 4, master the basics of the PHP framework for beginners
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Getting started with CodeIgniter 4, master the basics of the PHP framework for beginners

Here begins your roadmap in the use of PHPs frameworks

About the Book

This book is for anyone who wants to build their first applications in CodeIgniter 4, this writing offers a step-by-step introduction to the framework, knowing the most relevant aspects of it and is focused above all on practice; It is assumed that the reader has knowledge and has developed in PHP and related technologies of the language, such as JavaScript, HTML and CSS, since, remember that to use any framework, you have to have the bases that support it, that is, your programming language.

The book is aimed at those people who want to learn something new, learn about a framework that has very little documentation, who want to improve a skill in web development, who want to grow as a developer and who want to continue scaling their path with other frameworks superior to this one. As long as you meet at least some of the above considerations, this book is for you.

Map

This book has a total of 21 chapters and consists of explanations and practices.

Chapters:

  1. This chapter is intended to explain the environment needed to develop in CodeIgniter 4.
  2. We take the first steps with the frameworks, we will know the official website of the framework, installation forms and advantages of each one of them, we install the framework, we will know the initial aspects on how to run the framework, configure a database, create our first components, the use of migrations for table management and we will see several cases on how to work with them, we will work with the MVC and create each of these components that define it from scratch, routing and of course, finishing the chapter with the traditional CRUD for one of our entities.
  3. It is a practice for you, in which you have to create another CRUD; putting into practice everything seen in the first chapter.
  4. You will know how to use the routes, grouped routes, their options and the different types.
  5. We will know the use of the session and also of the flash session to save data and present it to the user.
  6. You will learn to manage views in a reusable way.
  7. We will see how to use a more modular scheme when defining controllers for each type of module.
  8. We will know how to work with HTML forms and apply validations from the server side in CodeIgniter, knowing the types of validations, creating them and applying validations from the controller; to then finally show the errors by the view; we will also learn how to use helper functions particular to forms.
  9. We will learn more about models, some properties that we can define in them, the use of functions and common example cases.
  10. We will learn to use filters to intercept requests; as a practical case, we will create an authentication module with login for our application in which we will protect the management module or dashboard.
  11. In this chapter we build a Rest Api type CRUD that can be consumed with JSON or XML; being CRUD type operations and working mainly from the server side; It will be a process similar to the CRUD that we created in Chapter 2, but with some variations that are typical of this type of structure.
  12. In this chapter you will learn to generate test data with seeders which are ideal for when we are starting to develop.
  13. In this chapter we will learn how to handle the relational schema of the database in CodeIgniter; We will look at one-to-many and many-to-many relationships.
  14. In this chapter we are going to work with uploading files in our application, to upload images to our movie model.
  15. This chapter provides an introduction to the use of the libraries and help functions and how to use them.
  16. This chapter we will adapt Bootstrap 5 components in the application.
  17. This chapter we will create an end user module with list and detail page.
  18. This chapter we will make some changes in the Rest Api created previously to define additional methods such as upload, pagination, among others.
  19. App with Vue, coming soon.
  20. In this chapter we will learn how to integrate the PayPal platform in CodeIgniter, in order to process payments directly from the application.
  21. This chapter we will know how to integrate CodeIgniter shield to handle authentication and authorization; also, we will create a small project with which we will learn to manage groups and permissions.

By the end of the book, you will have the knowledge to create any basic application with the framework and know more than just the basics of it.

I invite you to visit my website:

desarrollolibre.net

And get to know my work.

This book is a translation into English of Primeros pasos con CodeIgniter 4, domina las bases del framework PHP para principiantes which was originally written in Spanish.

About the Author

andres
andres

Andrés Cruz Yoris, Licenciado en Computación, con más de 10 años de experiencia en el desarrollo de aplicaciones web en general; trabajo con PHP, Python y tecnologías del lado del cliente como HTML, JavaScript, CSS, Vue entre otras; y del lado del servidor como Laravel, Flask, Django y Codeigniter. También desarrollo con Android Studio, xCode y Flutter para la creación de aplicaciones nativas para Android e IOS.

Pongo a tú disposición parte de mi aprendizaje, reflejado en cada una de las palabras que componen mis libros sobre el desarrollo de aplicaciones en general.

Table of Contents

  • Chapter 1: Required Software and Installing the Tools
    • Windows
    • Mac
    • Linux
    • Composer
  • Chapter 2: Knowing general aspects of Codeigniter 4
    • Organization of a project
    • Model view controller
    • Spark The command line
    • Download and install CodeIgniter
    • Run the app
    • Getting started with CodeIgniter 4
  • Chapter 3: CRUD for categories
    • Controller
    • Views
    • Models
    • Routes
  • Chapter 4: Routes and redirects
    • Group routes
    • Redirects
    • Named routes
    • Redirects and named routes
    • Limit resource paths or presenter:
  • Chapter 5: Session and flash messages
    • Flash messages
    • Messages session
  • Chapter 6: Views
    • Views and layouts
  • Chapter 7: Controllers
    • Reorder Controllers
    • Private methods
  • Chapter 8: Forms
    • Validations
    • Previous value (old)
  • Chapter 9: Models
    • Model Properties
    • Changes to return types
  • Chapter 10: Filters
    • Create a filter
  • Chapter 11: Rest Api CRUD
    • Case study
    • Return json in controllers
  • Chapter 12: Seeders
    • Generate a seeder:
    • Nested seeders
  • Chapter 13: Relationships
    • One-to-many relationships
    • Many-to-many relationships
  • Chapter 14: Uploading files
  • Chapter 15: Libraries and helper functions
    • Case study

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