Cross app link

To create cross app link in symfony you can use plugins:

omCrossAppUrlPlugin (for 1.2), pmCrossAppUrlPlugin (for 1.0), sfLinkCrossAppPlugin (for 1.1)

or just use this function:

function cross_app_link_to($app, $route, $args=null)
{
$host = sfContext::getInstance()->getRequest()->getHost() ;
$env = sfConfig::get('sf_environment');
$appRoutingFile = SF_ROOT_DIR.DIRECTORY_SEPARATOR.'apps'.DIRECTORY_SEPARATOR.$app.DIRECTORY_SEPARATOR.'config'.DIRECTORY_SEPARATOR.'routing.yml' ;
$route = substr($route, 1, strlen($route)) ;
if (file_exists($appRoutingFile)){
  $yml = sfYaml::load($appRoutingFile) ;
  $routeUrl = $yml[$route]['url'] ;
  if ($args){
    foreach ($args as $k => $v){
      $routeUrl = str_replace(':'.$k, $v, $routeUrl) ;
    }
  }
  if (strrpos($routeUrl, '*') == strlen($routeUrl)-1){
    $routeUrl = substr($routeUrl, 0, strlen($routeUrl)-2) ;
  }
}
if ($env == 'dev'){
   $path = 'http://' . $host . '/' . $app . '_dev.php' . $routeUrl ;
}
else {
 $path = 'http://' . $host . $routeUrl ;
}
return $path ;
}

put this code to the lib/helper/crossAppLinkHelper.php