How to: Clean username URL's in CodeIgniter
When most people start work on this, they think about using routes. You could do it this way, but then every time you enter a url such as http://example.com/controller then router would send the controller name off to check if it is a username. It's possible you could do a database check and send it back, but that is just annoying.
Another way is hooks, but I am not a fan of over-using hooks as they can create invisible code which confuses other developers.
The way I like to do this is to add a URL suffix in the config file (meaning add .html or similar to the end of all your pages) then anything with only 1 URI segment that does not have a suffix, is a username.
Step #1 Edit application/config/config.php and set the following config setting:
/* |-------------------------------------------------------------------------- | URL suffix |-------------------------------------------------------------------------- | | This option allows you to add a suffix to all URLs generated by CodeIgniter. | For more information please see the user guide: | | http://codeigniter.com/user_guide/general/urls.html */ $config['url_suffix'] = ".html";
Step #2 Add/edit your .htaccess file and add the highlighted rule:
Options +FollowSymLinks RewriteEngine on RewriteBase / # -- Add this rule --- RewriteCond %{REQUEST_URI} ^/([a-zA-Z0-9_-]+)$ RewriteRule ^(.*)$ index.php/profiles/view/$1 [L] # End of rule # Standard CodeIgniter rule RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php/$1 [L]
That is basically a standard CI .htaccess with an extra rule in it. Any URI segment 1 with a-z, 0-9, - or _ in it which does not have a URL suffix will go to a controller which will take the username and show the correct profile.
If you have mod_proxy enabled you could even swap the flag [L] with [L,P] to make the URL stay as example.com/username.
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