Book Image

CodeIgniter 1.7

Book Image

CodeIgniter 1.7

Overview of this book

CodeIgniter (CI) is a powerful open-source PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. CodeIgniter is an MVC framework, similar in some ways to the Rails framework for Ruby, and is designed to enable, not overwhelm. This book explains how to work with CodeIgniter in a clear logical way. It is not a detailed guide to the syntax of CodeIgniter, but makes an ideal complement to the existing online CodeIgniter user guide, helping you grasp the bigger picture and bringing together many ideas to get your application development started as smoothly as possible. This book will start you from the basics, installing CodeIgniter, understanding its structure and the MVC pattern. You will also learn how to use some of the most important CodeIgniter libraries and helpers, upload it to a shared server, and take care of the most common problems. If you are new to CodeIgniter, this book will guide you from bottom to top. If you are an experienced developer or already know about CodeIgniter, here you will find ideas and code examples to compare to your own.
Table of Contents (21 chapters)
CodeIgniter 1.7
Credits
About the Authors
About the Reviewer
Preface

The date helper—converting and localizing dates


Sooner or later we will find the need to work with dates, maybe to create a calendar, a list of events, or even a to-do list. In our sample application, we can keep track of the errors and incidents happening in our websites. With that we could generate some nice reports about our websites.

Working with dates is usually a very repetitive task, but CI will help us and ease this task. First we are going to add a new database table, where we can keep track of the errors:

CREATE TABLE `error_logs` (
`id` INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY , `site_id` INT NOT NULL , `error` TEXT NOT NULL , `date` DATETIME NOT NULL
) ENGINE = InnoDB;

Now we can start saving our errors to the database. In order to do that we will first create a controller, application/controllers/errors.php:

<?php
class Errors extends Controller
{
function errors()
{
parent::Controller();
}
function index()
{
$this->load->model('errors_model');
$site_id = "16...