Zend Framework 2 Json Model understanding

Question: How to render JSON response?
In controller use, JSONModel

public function indexAction()    {
        $result = new JsonModel(array('data'=>array(
     'key1' => 'value1',
     'key2' => 'value2',
     'key3' => 'value3',
     'key4' => 'value4',
     'key5' => 'value5'
            
        )));

        return $result;
    }

In View file, use following the encode the array.

echo Zend\Json\Json::encode($this->jsonArray, Zend\Json\Json::TYPE_ARRAY);

Question: How to JSON Encode an php object in recursive way?

$arrayData = Zend\Json\Json::encode($phpObject, true);

Question: How to convert XML to JSON?

$jsonContents = Zend\Json\Json::fromXml($xmlStringContents, true);

Question: How to get PHP Array from JSON Encoded string in view file?

$encodedValue='[1,2,3,4,5,6]';
$arrayData = Zend\Json\Json::decode($encodedValue,Zend\Json\Json::TYPE_ARRAY);
print_r($arrayData );die;

Question: How to get PHP Object from JSON Encoded string in view file?

$encodedValue='[1,2,3,4,5,6]';
$arrayData = Zend\Json\Json::decode($encodedValue,Zend\Json\Json::TYPE_OBJECT);
print_r($arrayData );die;

Question: How to display JSON Encoded string in Pretty way?

$encodedValue='[1,2,3,4,5,6]';
$arrayData = Zend\Json\Json::prettyPrint($encodedValue, array("indent" => " "));
print_r($arrayData );die;

Question: How to check Ajax Request OR Not?

if($this->getRequest()->isXmlHttpRequest())){
/** 
This is Ajax Request 
**/
}else{
/** 
This is NOT Ajax Request 
**/
}

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Zend Framework2 manage layout and view variables from controller

Question: How to set variable to layout from controller?
Following are different three ways to set the variable from controller.
First way

public function indexAction(){ 
    $this->layout()->variableName = 'value1';
}

Second way

public function indexAction(){ 
    $this->layout()->setVariable('variableName', 'value2');
}

Third way

    public function indexAction(){ 
    $this->layout()->setVariables(array(
        'variableName1' => 'value1',
        'variableName2'  => 'value2',
    );
}

In layout File, you can access with following way.

$this->variableName1;

Question: How to set variable to view from controller in Zend Framework2

public function indexAction(){ 
return new ViewModel(array(
           'variableName3' => 'value 3',
         ));
}

in layout view, you can access with following way.

$this->$this->variableName2;

Question: How I can get access to my module config from the controller?

public function indexAction(){ 
    $config = $this->getServiceLocator()->get('Config');
}

Question: How to Change layout in the controller in Zend Framework 2.0?

public function indexAction(){ 
    $this->layout('layout/mynewlayout'); /*It will search view/layout/mynewlayout.phtml*/
}

Question: How to disable layout in zend framework 2?

public function indexAction(){ 
    $viewModel = new ViewModel();
    $viewModel->setTerminal(true);
}

Question: How to disable render view in zend framework 2?

public function indexAction()
{ 
    return false;
}

Best Related Posts are Following:

1. Zend Framework 2 Session Management - Add Update Delete Session.
2. Zend Framework 2 get params from URL.
3. How to enable error reporting in Zend Framework 2?.
4. What is Composer in php? - Manage the Dependencies.
5. How to install Zend Framework 2 in windows.