How to Properly Set the Base URL in CodeIgniter for Optimized Resource Access?

How to Set Up the Base URL in CodeIgniter to Optimize Resource Access

In CodeIgniter, setting up a proper base URL is crucial for accessing images, libraries, and other resources efficiently. Let's delve into your question and provide a solution:

Understanding base_url in config.php

The base_url parameter in config.php determines the root directory of your web application. Your current setting of $config['base_url'] = "http://".$_SERVER["HTTP_HOST"]."/"; is insufficient as it relies on server variables which may not always provide the correct path.

Solution: Setting the Base URL

To rectify this issue, edit your config.php file and update the base_url parameter as follows:

$config['base_url'] = 'http://localhost/Appsite/website/';

Remember to adjust the value based on your specific directory structure.

Using $config['base_url'] to Access Resources

Once the base URL is set, you can use the base_url() function to easily access resources:

Accessing Images:

<img src="<?php echo base_url(); ?>images/images.PNG">

Accessing Other URLs:

<a href="<?php echo base_url(); ?>controllerName/methodName">Click Here</a>

Accessing CSS and Other Assets:

<link rel="stylesheet" type="text/css" href="<?php echo base_url(); ?>assets/css/style.css" />

Additionally, to remove index.php from URLs, add the following lines to your .htaccess file:

# To remove index.php in URL
RewriteEngine on
RewriteCond  !^(index\.php|assets|image|resources|robots\.txt)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?/ [L,QSA]

Note: Ensure that you have loaded the URL helper in autoload.php to use base_url().

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