Codeigniter 4 Documentation

About Codeigniter 4 Documentation Android App

CodeIgniter is an Application Development Framework - a toolkit - for people who build web sites using PHP. Its goal is to enable you to develop projects much faster than you could if you were writing code from scratch, by providing a rich set of libraries for commonly needed tasks, as well as a simple interface and logical structure to access these libraries. CodeIgniter lets you creatively focus on your project by minimizing the amount of code needed for a given task.

Where possible, CodeIgniter has been kept as flexible as possible, allowing you to work in the way you want, not being forced into working any certain way. The framework can have core parts easily extended or completely replaced to make the system work the way you need it to. In short, CodeIgniter is the malleable framework that tries to provide the tools you need while staying out of the way.

Topics Included in this App :

CodeIgniter4 User Guide
Welcome to CodeIgniter4
Server Requirements
Credits
PSR Compliance

Getting Started
Installation
Manual Installation
Composer Installation
Running Your App
Upgrading From a Previous Version
Troubleshooting
CodeIgniter Repositories

Build Your First Application
Static pages
News section
Create news items
Conclusion

Overview & General Topics
CodeIgniter4 Overview
Application Structure
Models, Views, and Controllers
Autoloading Files
Services
Working With HTTP Requests
Security Guidelines

General Topics
Configuration
CodeIgniter URLs
Helper Functions
Global Functions and Constants
Logging Information
Error Handling
Web Page Caching
AJAX Requests
Code Modules
Managing your Applications
Handling Multiple Environments

Controllers and Routing
Controllers
URI Routing
Controller Filters
HTTP Messages
Request Class
IncomingRequest Class
Content Negotiation
HTTP Method Spoofing
RESTful Resource Handling

Building Responses
Views
View Cells
View Renderer
View Layouts
View Parser
HTML Table Class
HTTP Responses
API Response Trait
Localization
Alternate PHP Syntax for View Files

Working With Databases
Quick Start: Usage Examples
Database Configuration
Connecting to a Database
Running Queries
Generating Query Results
Query Helper Functions
Query Builder Class
Transactions
Getting MetaData
Custom Function Calls
Database Events
Database Utilities

Modeling Data
Using CodeIgniter's Model
Using Entity Classes

Managing Databases
Database Manipulation with Database Forge
Database Migrations
Database Seeding

Library Reference
Caching Driver
CURLRequest Class
Email Class
Encryption Service
Working with Files
Honeypot Class
Image Manipulation Class
Pagination
Security Class
Session Library
Throttler
Dates and Times
Typography
Working with Uploaded Files
Working with URIs
User Agent Class
Validation

Helpers
Array Helper
Cookie Helper
Date Helper
Filesystem Helper
Form Helper
HTML Helper
Inflector Helper
Number Helper
Security Helper
Text Helper
URL Helper
XML Helper

Testing
Getting Started
Database
Controller Testing
HTTP Testing
Benchmarking
Debugging Your Application

Command Line Usage
Running via the Command Line
Custom CLI Commands
CLI Library
CLIRequest Class

Extending CodeIgniter
Creating Core System Classes
Replacing Common Functions
Events
Extending the Controller
Authentication
Contributing to CodeIgniter