Zend MVC - I echo some test debug output but it seems to be suppresed and does not show
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 rende开发者_开发问答red 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?
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');
Output buffering may be the culprit. Try:
echo 'my debug output';
flush();
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()
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 'views\scripts\index\index.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...
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