UserCake : Simple User Management System
User Management is a commonly seen in most web applications today. That's why it's important for any web application to have a pretty secure scalable user management system.
Welcome, UserCake (not to be affiliated with the PHP Framework CakePHP). It acts as a baseline for you user management needs.
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CodeIgniter Image Manipulation Class: How to Resize
The CodeIgniter Image Manipulation Class is a useful tool when implementing simple resize, cropping, rotate, watermarking and flipping of images are required in your project.
Here is a series of code templates for using the CodeIgniter Image Manipulation Class:
First one is resizing:
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The Right Way to Get a File Extension in PHP
I made a recent search on retrieving file extensions in PHP.
I found out that a lot have been re-inventing the wheel. They have been creating code for functionality that PHP already has. This is one example of re-inventing the wheel
function get_file_extension($file_name)
{
return substr(strrchr($file_name,'.'),1);
}
Another example was this:
function file_extension($filename)
{
return end(explode(".", $filename));
}
PHP already has a function that does the same thing and more.
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How to Disable Image Caching
Browser caching is useful. It lets you load pages faster by storing cache-able files on your computer. If you have a slower internet connection, this will most likely be helpful to you.
However, the problem arises if you a programmer that needs images to be fresh. I've recently creating a image manipulation program and needed to the images NOT to cache. Here's a trick to do this:
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PHP Delete Function
There is actually no delete function in PHP. However, there is a PHP function that does the function of a delete if there was one.
Welcome unlink, the PHP delete function.
PHP Unlink function usage
unlink('/uploads/my_photo.gif');
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CodeIgniter AJAX Helper
This is a quick post on how to recognize AJAX Requests.
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
function is_ajax()
{
return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
}
?>
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AJAX with CodeIgniter
AJAX can be seen almost everywhere on the web. Yahoo uses it. Google uses it. My boss uses it. My grandmother uses it — well maybe not but that shouldn't stop you from using it.
Here's an awesome tutorial to use AJAX with CodeIgniter.
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CodeIgniter FAQ: Loading a View within a View
A lot of new CodeIgniter users have at one point asked, "How to load a view within another View?"
To load a view within another view. We can also use the same method we used in the controller to load the "primary" view.
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