How to Eliminate 'index.php' from CodeIgniter URLs: A Guide to .htaccess and URL Rewriting

CodeIgniter htaccess and URL Rewrite Issues

Removing the "index.php" segment from URLs in CodeIgniter can be a common challenge for beginners. Let's delve into the steps involved and troubleshooting potential issues.

Setup

To achieve the desired URL structure, three steps are crucial:

1. Edit application/config.php

Update the following configuration settings:

$config['base_url'] = 'http://'.$_SERVER['SERVER_NAME'].'/Your Ci folder_name';
$config['index_page'] = '';
$config['uri_protocol'] = 'AUTO';

2. Create a .htaccess file in the root directory

Add the following code to the .htaccess file:

RewriteEngine on
RewriteCond  !^(index\.php|resources|robots\.txt)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/ [L,QSA]

3. Enable the rewrite engine (if not already enabled)

A. Apache Web Server

• Using the command line: a2enmod rewrite
• Edit /etc/apache2/sites-enabled/000-default.
• Change "AllowOverride None" to "AllowOverride All."
• Restart Apache: sudo /etc/init.d/apache2 restart

Troubleshooting

500 Internal Server Error:

• Ensure that the .htaccess file is placed in the root directory.
• Check the syntax of the .htaccess file.

Still unable to access pages without the "index.php" segment:

• Verify that you have updated the configuration settings in application/config.php and created the .htaccess file correctly.
• Check the file permissions of the .htaccess file. It should have the appropriate write permissions.
• Reload the Apache configuration: sudo /etc/init.d/apache2 reload

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