CiviCRM Community Forums (archive)

Paths like "/drupal/civicrm/foo" are not usually mapped to files; rather, they map to PHP code (ie an XML "route" and a "controller" class). In both cases, the construction of the URL will vary depending on the system, so it's best to use a helper function to consruct the URL. (Example: Drupal+Civi supports clean-URLs, but WP+Civi do not. Extensions support configurable basedirs.)

The way to link to something depends on whether you intend to access a PHP controller or a static file:

 * To reference to a PHP route/controller (from PHP), use CRM_Utils_System::url('civicrm/foo').

 * To reference to a PHP route/controller (from Javascript), use CRM.url('civicrm/foo').

 * To reference to a static file (from PHP), use CRM_Core_Resources::singleton()->getUrl($ext,$file).

 * To reference to a static file (from Javascript), you'll need to run getUrl() in PHP and then export it to JS. For example, in v4.6, you might say:

// PHP
function myext_civicrm_pageRun(...) {
   ...
   $res = CRM_Core_Resources::singleton();
   $res->addVars('myext', array(
     'baseUrl' => $res->getUrl('org.example.myext'),
   ));
   ...
}

// Javascript
alert('The URL is' + CRM.vars.myext.baseUrl);