PHP - ZF2 - render template from string variable - php

Question

i have problem with rendering template in ZF2, where template is in string in variable. There is simple example:
$template = "<div>easy</div>";
$view = new \Zend\View\Model\ViewModel();
$view->setTemplate($template);
$renderer = new \Zend\View\Renderer\PhpRenderer();
$html = $renderer->render($view);
This code fail on rendering, the renderer think that the template is a path to file. And iam reallz not sure how to tell rendere its a string.
Thx for your time and respond.

Answer 1

You have to extend the PhpRenderer class and override the render method, in such a way that will use the string in the $template as the actual template:
class MyPhpRenderer extends PhpRenderer {
public function render($nameOrModel, $values = null)
{
if ($nameOrModel instanceof Model) {
$model = $nameOrModel;
$nameOrModel = $model->getTemplate();
if (empty($nameOrModel)) {
throw new Exception\DomainException(sprintf(
'%s: received View Model argument, but template is empty',
__METHOD__
));
}
$options = $model->getOptions();
foreach ($options as $setting => $value) {
$method = 'set' . $setting;
if (method_exists($this, $method)) {
$this->$method($value);
}
unset($method, $setting, $value);
}
unset($options);
// Give view model awareness via ViewModel helper
$helper = $this->plugin('view_model');
$helper->setCurrent($model);
$values = $model->getVariables();
unset($model);
}
// find the script file name using the parent private method
$this->addTemplate($nameOrModel);
unset($nameOrModel); // remove $name from local scope
$this->__varsCache[] = $this->vars();
if (null !== $values) {
$this->setVars($values);
}
unset($values);
// extract all assigned vars (pre-escaped), but not 'this'.
// assigns to a double-underscored variable, to prevent naming collisions
$__vars = $this->vars()->getArrayCopy();
if (array_key_exists('this', $__vars)) {
unset($__vars['this']);
}
extract($__vars);
unset($__vars); // remove $__vars from local scope
while ($this->__template = array_pop($this->__templates)) {
$this->__file = $this->resolver($this->__template);
try {
if (!$this->__file) {
$this->__content = $this->__template; // this line does what you need
}else{
ob_start();
$includeReturn = include $this->__file;
$this->__content = ob_get_clean();
}
} catch (\Exception $ex) {
ob_end_clean();
throw $ex;
}
if ($includeReturn === false && empty($this->__content)) {
throw new Exception\UnexpectedValueException(sprintf(
'%s: Unable to render template "%s"; file include failed',
__METHOD__,
$this->__file
));
}
}
$this->setVars(array_pop($this->__varsCache));
if ($this->__filterChain instanceof FilterChain) {
return $this->__filterChain->filter($this->__content); // filter output
}
return $this->__content;
}
}
and then you code should look like:
$template = "<div>easy</div>";
$view = new \Zend\View\Model\ViewModel();
$view->setTemplate($template);
$renderer = new MyPhpRenderer();
$html = $renderer->render($view);

Answer 2

Try by replacing '\' with _ underscore as Zend_View_Renderer_PhpRenderer