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link_tag is an interesting helper function introduced recently in CodeIgniter that helps you build link HTML tags to include CSS files but also feeds or favicons in a header.

The helper function documentation is quite explanatory and you can see it here.

In particular, if you are planning to use a similar function for Javascript files, please check this forum post. A custom helper function that helps using the same approach but for JS files instead.

But if you want to go one step ahead, also notice that you can get a performance improvement by combining external resources in one single file. In CodeIgniter you can also do that, for example using the approach to combine JS and CSS files.

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If you want to display avatar images in your CodeIgniter application, you can use this Gravatar helper that contains a simple function to retrieve the Gravatar image source for a given email.

The Gravatar helper was created by Dave_C as mentioned in Codeigniter Forums.

By using this helper you can easily integrate your application with Gravatars like this:

How to use the helper?

Follow the installation steps described here, and then just load the helper as usual and put this code in your view page passing the desired email as first parameter.

<?php echo gravatar( "you@domain.com" ); ?>

Related searches:

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If you are running your site in Spanish and using url_title to create Permalinks in CodeIgniter then likely you had run in character issues while creating your links.

Martin posted a solution in CodeIgniter’s forum with a workaround for this issue. He proposed

$trans = array(
                    $search                                => $replace,
                    "á"                                    => 'a',
                    "é"                                    => 'e',
                    "í"                                    => 'i',
                    "ó"                                    => 'o',
                    "ú"                                    => 'u',
                    "à"                                    => 'a',
                    "è"                                    => 'e',
                    "ì"                                    => 'i',
                    "ò"                                    => 'o',
                    "ù"                                    => 'u',
                    "ñ"                                    => 'n',
                    "ä"                                    => 'a',
                    "ë"                                    => 'e',
                    "ï"                                    => 'i',
                    "ö"                                    => 'o',
                    "ü"                                    => 'u',
                    "\s+"                                => $replace,
                    "[^a-z0-9".$replace."]"                => '',
                    $replace."+"                        => $replace,
                    $replace."$"                        => '',
                    "^".$replace                        => ''
                   );

My two cents here are the following. You can try to override the URL Helper by extending it in MY_url_helper.php under application/helpers directory.

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