Question

I am developing a Zend MVC application.

Sometimes I like to echo some text just for quick and dirty debugging. e.g

<?php
class MyClass {}
echo( hello world - yes this script is included );

I can echo debug-text in my bootstrap> But, when text is echoed in my model or controllers it is NOT being rendered in the output.

I am using Zend 1.9.5 and using Zend Layout with MVC

Is there a setting somewhere that is suppressing all non-view script rendered output?

Answer 1

I am answering this question because I came back to the same code , 10 months later , and it confused me again.

I was in the context of a Default Module, Index Controller, and Index Action.

I wanted to echo some simple text as a quick way to see what was happening in the code:

class IndexController extends Zend_Controller_Action
 {

 public function indexAction()
  {
  //home page
  echo  <h1>hello world</h1> ;

  //set the special home page layout
  $this->_helper->layout()->setLayout( home-page );
  }

Trouble was - the echoed text was just not showing up.

It worked in other controllers , but not this one. It was driving me crazy.

Now - I ve worked out the problem.

I was using a special layout for this particular control action... a home page layout .

In my home page layout I was not rendering any view script. All the content and design was in the layout. Because the home page is a special , unique page, there was no need to separate into a two step view. For this reason I had no reason to need a view script. But, I did create a viewsscriptsindexindex.phtml to keep ZF from complaining. I did not however, render it in my layout - cos it was not needed.

Any echoed output is captured into the layout()->content (automatically assigned by the layout from the default response segment). Because I was not echoing out that segment, it behaved as if the echoed text was being suppressed.

To solve the problem , i simply had to ensure that i was echoing out the content segment.

i.e.

<html>
<head>
...
</head>
<body>
... my home page html...
<?php echo $this->layout()->content ?>
... my home page html...
</body>
</html>

which, with my debug text being echoed too... would render as:

... my home page html...
<h1>hello world</h1>
... my home page html...

Answer 2

You can also use die() instead of echo :) it will work. Or use Zend_Log and output writer like this:

$writer = new Zend_Log_Writer_Stream( php://output );

Answer 3

Output buffering may be the culprit. Try:

echo  my debug output ;
flush();

Answer 4

If viewRendering is turned on, it s probably looking for the view/scripts/ to render and possibly not displaying your echo statements.

You could try to turn viewRendering off the given controller and see if that helps.

viewRenderer->setNoRender()

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