The Complete PHP CodeIgniter Course: Beginner To Advanced

Students will learn how to create and use Controllers, the central component of the MVC pattern in CodeIgniter that handles application logic.  They'll master how to create controller classes and methods to handle user requests, load models to get data, and then load views to display the final webpage to the user.

Students will learn how to create Views, the 'V' in the Model-View-Controller (MVC) pattern that is responsible for the presentation layer of their application.  They'll master how to build a view file containing their HTML and how to pass dynamic data to it from a Controller, allowing for a clean separation of application logic and display.

Students will learn how to create and use Models, the 'M' in the Model-View-Controller (MVC) pattern that is responsible for all database interactions.  They'll master how to build a model class with methods to retrieve, insert, and update data, centralizing their database logic for a clean and maintainable application.

Students will learn how to connect all three parts of the Model-View-Controller (MVC) pattern to display dynamic database content. They'll master the complete workflow: a Controller calls a Model to fetch data, which is then passed to a View to be rendered as HTML for the user.

Students will learn the essential first step of building a data-driven application: creating the database.  Using a tool like phpMyAdmin, they'll walk through the process of creating a new MySQL database and then learn how to update their CodeIgniter configuration file with the correct credentials to connect to it.

Students will learn the complete MVC workflow for fetching data from the database and displaying it on a page. They'll master how to create a method in a Model to query the database, call that method from a Controller, and then pass the retrieved data to a View for display to the user.

Students will learn how to use CodeIgniter's powerful Query Builder (historically known as Active Record) to interact with their database in a safe and simple way.  They'll master the fluent, chainable syntax to build SQL queries programmatically, which helps prevent common security vulnerabilities like SQL injection and makes their code more readable.

Students will learn how to pass data from the URL as parameters into their controller methods, a key technique for creating dynamic pages.  They'll master how to use URI segments to pass values like a product ID, allowing them to create a single method that can display details for any item in their database.

Students will learn how to pass multiple parameters through the URL by adding additional URI segments to their links.  They'll master how to define a controller method that accepts multiple arguments from the URL, allowing them to build more complex, data-driven pages like paginated category views.

Students will learn how to use CodeIgniter's autoload.php file to automatically load commonly used resources on every request, saving them from having to manually load them in every controller.  They'll master how to add libraries (like the database), helpers (like URL helpers), and models to the autoload configuration for a more efficient workflow.

Students will learn the complete MVC workflow for inserting new data from a form submission into a database table.  They'll master how to pass the submitted data from a Controller to a Model method, which then uses the Query Builder to create and save a new record.

Students will learn the complete MVC workflow for processing an edit form and updating a record in the database.  They'll master how to pass the submitted data from a Controller to a Model, which then uses the Query Builder to update the correct row based on its ID, a core part of any data management application.

Students will learn the complete MVC workflow for permanently deleting a record from a database table.  They'll master how a Controller receives a record's ID from the URL and passes it to a Model, which then uses the Query Builder to execute a DELETE statement, removing the data for good.

Students will learn how to create the necessary Model, View, and Controller (MVC) files to build a user login panel from scratch. This lecture covers the essential first step of scaffolding the application, creating the empty files in the correct directories to house the login logic, form, and database interactions.

Students will learn the fastest and most common way to start using Bootstrap and jQuery by linking to their official CDNs (Content Delivery Networks).  They'll discover how to copy the required CSS and JavaScript links from the documentation and place them correctly in their HTML file to instantly add powerful styling and interactivity to their projects.

Students will learn how to download and install the Bootstrap framework to host its files locally within their CodeIgniter application.  They'll then master the crucial technique of using CodeIgniter's base_url() helper function to create robust links to their CSS and JavaScript assets, ensuring their styles and scripts load correctly.

Students will learn how to build secure and robust web forms the CodeIgniter way by using the built-in Form Helper.  They'll master using helper functions to programmatically generate form elements, which helps with security and makes their code cleaner and more maintainable than writing raw HTML.

Students will learn how to programmatically generate a variety of HTML input tags for their web forms using CodeIgniter's Form Helper.  They'll master using specific helper functions to create text inputs, password fields, and text areas, and learn how to pass an array of attributes to set their properties like name, class, and placeholder.

Students will learn how to assemble all the individual components into a complete and polished form view.  They'll combine CodeIgniter's Form Helper functions with Bootstrap styling to finalize the layout and design, resulting in a professional and responsive data entry form ready for its back-end logic.

Students will learn how to handle a form submission by passing form values from the view to a controller for processing. They'll master how to retrieve the user's submitted data in their controller using CodeIgniter's Input Library, the first step in saving user input to a database or performing any other back-end action.

Students will learn how to ensure data integrity and provide user feedback by using CodeIgniter's powerful Form Validation Library.  They'll master how to set a variety of validation rules—such as required, min_length, and valid_email—and learn how the framework automatically redisplays the form with helpful error messages if the rules are not met.

Students will learn how to use CodeIgniter's Session Library to persist user data and maintain state across multiple pages.  They'll master how to set and retrieve session data, a critical skill for building features like user logins, "flash" messages, and shopping carts.

Students will learn how to get user-submitted data in the Controller and prepare it for the Model to process.  They'll master using the Input Library to retrieve form values and package them into a data array, ready to be passed to a model method for insertion or updating in the database.

Students will learn how to create a dedicated Model to encapsulate all of the user authentication logic for their login system.  They'll practice writing a method that takes a username and password, queries the database to find a matching user, and verifies their credentials, keeping all database interactions neatly organized.

A short course summary and recap of our course goals!

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