Zend Framework 2 get params from a string or current url

Question

I need to get the params from the current url, but i'm getting an error when i put my code in public function __construct

Here's my current code:

class BlogController extends AbstractActionController{
    public function __construct()
    {
        //echo $this->params()->fromRoute('controller');
        //echo $this->params()->fromRoute('action');
    }
}

if there's a way to get params from a string/current url. It will be fine.

please help. i need this for my ACL so that i will not check in every function what is the current action and controller.

You can't do this in the constructor - why do you specifically need it there? — Tim Fountain
– Tim Fountain, Commented Sep 23, 2014 at 10:19
i need to put it on the constructor so that before the page load ' will know what controller or what action that the user is accessing. i also need to put it on the constructor so that when i have a new module.. it will not be necessary to put my code in every function inside the controller.. — jeck120591
– jeck120591, Commented Sep 24, 2014 at 1:51

edigu · Accepted Answer · 2014-09-23 07:10:15Z

1

Actually, params() controller plugin provides parameters from five different sources:

$this->params()->fromRoute() - Parameters you defined in routing configuration
$this->params()->fromFiles() - Attached files in request
$this->params()->fromHeader() - HTTP header parameters.
$this->params()->fromPost() - POST parameters
$this->params()->fromQuery() - Query parameters.

So, what you need is fromQuery(), not fromRoute()

answered Sep 23, 2014 at 7:10

edigu

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6 Comments

jeck120591 Over a year ago

Thank you for your answer,, i tried fromQuery(); but it returns an empty array(). Here's my code: echo '</pre>'; print_r($this->params()->fromQuery()); echo '</pre>';

edigu Over a year ago

Hmm, what is the output of the var_dump($_GET);? Did you pass querystring parameters properly in http (nginx/apache) level?

jeck120591 Over a year ago

var_dump($_GET) returns array(0) { }

edigu Over a year ago

Please also check Tim's comment under the question. __construct() may not correct place to do that.

Marcel Djaman Over a year ago

Please provide more info about what u trying to accomplish. var_dump($_GET) must give you an array of url parameters only if the cuurent page url from your browser has it; If it from variable string do different approach

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jeck120591 · Accepted Answer · 2014-09-25 06:15:34Z

now i know that its not posible.

I found an answer in some docu then i add this code to my Module.php

public function onBootstrap(MvcEvent $e) {
        $this->initAcl($e);
        $e->getApplication()->getEventManager()->attach('route', array($this, 'checkAcl'));
}

public function initAcl(MvcEvent $e) {

    $acl = new \Zend\Permissions\Acl\Acl();
    $roles = array(
        'guest'=> array( //functions that the user can access
            'registration',
            'home',
        ),
        'admin'=> array(
            'registration',
        ),
    );
    $allResources = array();
    foreach ($roles as $role => $resources) {

        $role = new \Zend\Permissions\Acl\Role\GenericRole($role);
        $acl->addRole($role);

        $allResources = array_merge($resources, $allResources);

        //adding resources
        foreach ($resources as $resource) {

             if(!$acl->hasResource($resource))
                $acl->addResource(new \Zend\Permissions\Acl\Resource\GenericResource($resource));
        }
        //adding restrictions
        foreach ($resources as $resource) {
            $acl->allow($role, $resource);
        }
    }
    $e->getViewModel()->acl = $acl;
}

public function checkAcl(MvcEvent $e) {
        $route = $e -> getRouteMatch() -> getMatchedRouteName();
        //you set your role
        $userRole = 'guest';

        //if (!$e -> getViewModel() -> acl -> isAllowed($userRole, $route)) {
        if ($e -> getViewModel()->acl->hasResource($route) && !$e->getViewModel()->acl->isAllowed($userRole, $route)) { 
            $response = $e -> getResponse();
            //location to page or what ever
            $response -> getHeaders()->addHeaderLine('Location', $e -> getRequest() -> getBaseUrl() . '/404');
            $response -> setStatusCode(404);

        }
}

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