El resto es fácil, acceso mediante CURL y listo:

    define('GOOGLE_API_KEY', '[insert your key here]');
    define('GOOGLE_ENDPOINT', 'https://www.googleapis.com/urlshortener/v1');
 
    function shortenUrl($longUrl)
    {
        // initialize the cURL connection
        $ch = curl_init(
            sprintf('%s/url?key=%s', GOOGLE_ENDPOINT, GOOGLE_API_KEY)
        );
 
        // tell cURL to return the data rather than outputting it
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 
        // create the data to be encoded into JSON
        $requestData = array(
            'longUrl' => $longUrl
        );
 
        // change the request type to POST
        curl_setopt($ch, CURLOPT_POST, true);
 
        // set the form content type for JSON data
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: application/json'));
 
        // set the post body to encoded JSON data
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($requestData));
 
        // perform the request
        $result = curl_exec($ch);
        curl_close($ch);
 
        // decode and return the JSON response
        return json_decode($result, true);
    }
 
    $response = shortenUrl('http://phpriot.com');
 
    echo sprintf(
        '%s was shortened to %s',
        $response['longUrl'],
        $response['id']
    );

Shortening URLs for goo.gl with Google’s URL Shortener API

Vía / PHPDeveloper.org

Para ello primero se debe cambiar el archivo routes.php de la configuración:

//Excluir estos controladores cuando se generan las URLs
$route['(login|oauth|site|search)(.*)'] = '1';  
 
//Las URLs de los usuarios
$route['[a-zA-Z0-9]+/(add|edit)'] = 'users/1';
$route['[a-zA-Z0-9]+'] = 'users/profile';

Después habrá que modificar el .htaccess para usar APP_PATH:

RewriteEngine On
 
RewriteBase /
 
RewriteCond %{ENV:REDIRECT_APP_PATH} !^$
RewriteRule ^(.*)$ - [E=APP_PATH:%{ENV:REDIRECT_APP_PATH}]
 
RewriteCond %{ENV:APP_PATH} ^$
RewriteRule ^(.*)$ - [E=APP_PATH:/$1]
 
RewriteCond $1 !^(index\.php|img|css|js|robots\.txt|favicon\.ico)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php [L]

Y por último modificar el config.php para indicar que debe usar el APP_PATH:

$config['uri_protocol']    = "APP_PATH";
 
$config['enable_query_strings'] = TRUE;

Codeigniter Vanity URLs

Vía / PHPDeveloper.org

Post original