Router::url('/', true) . 'img/example.png' (cakephp 2)
// localhost/domain/event/detail
$current_url = $this->request->here();
// => /domain/event/detailecho $this->Html->link(__('<i class="fas fa-icons"></i>'), array(
'plugin' => 'building',
'controller' => 'service_icons',
'action' => 'index',
'?building_post_id=' . $buildingPost['BuildingPost']['id']), array('class' => 'btn btn-info btn-xs', 'escape' => false, 'data-toggle'=>'tooltip', 'title' => __d('building', 'add_service_icon')));
// output
// http://localhost/paragonasia-portal/admin/building/service_icons/index/?building_post_id=16//chnage the layout in Cakephp 4 with the layout file called ajax.php
$this->viewBuilder()->setLayout('ajax');