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copied!<p>By variable do you mean GET query string parameters, like in <code>/foo?key=value</code>? You can access them in the controller through <a href="http://book.cakephp.org/2.0/en/controllers/request-response.html#accessing-querystring-parameters" rel="nofollow">the request object</a>: <code>$this->request->query['key']</code>.</p> <p>If you are looking for something more integrated you can use CakePHP's default routes or make your own. </p> <p>The <strong>default routes</strong> work with URLs like <code>/controller/action/param1/param2</code> and pass the parameters to the action by position. For instance <code>/posts/view/521</code> maps to a call to <code>view(521)</code> in <code>PostsController</code>, and <code>/posts/byMonth/2012/02</code> maps to a call to <code>byMonth("2012","02")</code>. </p> <p>You can also use named parameters and the URLs look like <code>/controller/action/key1:value1/key2:value2</code>. In controller actions you would read them with <code>$this->params['named']['key1']</code>.</p> <p>With <strong>custom routes</strong> you can make your URLs anything you want. You're not forced to the /controller/action pattern; you can make <code>/archives/2012-02</code> map to <code>PostsController::byMonth(2012,2)</code>, or have <code>/512-post-title</code> map to <code>PostsController::view(512)</code>.</p> <p>Typically you would start out with the default routes and add custom routes when you decide you need them. You can read all about the default and custom routes in <a href="http://book.cakephp.org/2.0/en/development/routing.html" rel="nofollow">http://book.cakephp.org/2.0/en/development/routing.html</a></p>

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