Question

I cannot seem to register a custom view helper in zend Framework 2.02 I tried all solutions posted here and anything I can think I should do but I keep getting this error:

Fatal error: Class ‘ModuleName\view\Helper\mylinkhelper’ not found in C:\wamp\vhosts\projectName\vendor\zendframework\zendframework\library\Zend\ServiceManager\AbstractPluginManager.php on line 177

And here’s how my module.config.php looks like:

return array{
      'controllers'=>array(

           ....
       ),
      'view_manager' => array(
          'template_path_stack' => array(
             'ModuleName' => __DIR__ . '/../view',
           ),    
   ),
   'view_helpers' => array(  
            'invokables' => array(  
                 'mylink' => 'ModuleName\view\Helper\mylinkhelper',   
             ),  
       ),
};

in my view file, I have:

echo $this->mylink($someparameter); 

I appreciate any feedback on this. I don’t really know what else to do here.

Answer 1

<?php
// ./module/Application/src/Application/View/Helper/AbsoluteUrl.php
namespace Application\View\Helper;

use Zend\Http\Request;
use Zend\View\Helper\AbstractHelper;

class AbsoluteUrl extends AbstractHelper
{
    protected $request;

    public function __construct(Request $request)
    {
        $this->request = $request;
    }

    public function __invoke()
    {
        return $this->request->getUri()->normalize();
    }
}

You’ll notice that this particular helper has a dependency — a Zend\Http\Request object. To inject this, we’ll need to set up a factory with the initialization logic for our view helper:

    <?php
    // ./module/Application/Module.php
    namespace Application;

    use Application\View\Helper\AbsoluteUrl;

    class Module
    {
        public function getViewHelperConfig()
        {
            return array(
                'factories' => array(
                    // the array key here is the name you will call the view helper by in your view scripts
                    'absoluteUrl' => function($sm) {
                        $locator = $sm->getServiceLocator(); // $sm is the view helper manager, so we need to fetch the main service manager
                        return new AbsoluteUrl($locator->get('Request'));
                    },
                ),
            );
        }


     // If copy/pasting this example, you'll also need the getAutoloaderConfig() method; I've omitted it for the sake of brevity.
}

That’s it! Now you can call your helper in your view scripts:

The full URL to the current page is: <?php echo $this->absoluteUrl(); ?>

thanks to evan to create this tutorial