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<?php
declare(strict_types=1);
namespace Laminas\View\Model;
use Laminas\Json\Json;
use Laminas\Stdlib\ArrayUtils;
use Traversable;
class JsonModel extends ViewModel
{
/**
* JSON probably won't need to be captured into a
* a parent container by default.
*
* @var string|null
*/
protected $captureTo;
/**
* JSONP callback (if set, wraps the return in a function call)
*
* @var string|null
*/
protected $jsonpCallback;
/**
* JSON is usually terminal
*
* @var bool
*/
protected $terminate = true;
/**
* Set the JSONP callback function name
*
* @param string $callback
* @return JsonModel
*/
public function setJsonpCallback($callback)
{
$this->jsonpCallback = $callback;
return $this;
}
/**
* Serialize to JSON
*
* @return string
*/
public function serialize()
{
$variables = $this->getVariables();
if ($variables instanceof Traversable) {
$variables = ArrayUtils::iteratorToArray($variables);
}
$options = [
'prettyPrint' => $this->getOption('prettyPrint'),
];
if (null !== $this->jsonpCallback) {
return $this->jsonpCallback . '(' . Json::encode($variables, false, $options) . ');';
}
return Json::encode($variables, false, $options);
}
}