Zend Debugging and object creation in PHP

Question

Hi all I have a quick question about the construction of objects in PHP. I'm currently using the Zend framework to make a small test application to familiarize myself with the Zend way of doing things. However I have come across an error that is unfamiliar to me. In my controller I create the object $student like so:

$student = new Application_Model_Student();

However doing this causes my page to dump a 500 error and no debugging output. My constructor for this model doesn't actually do anything but print "Hello Creation" out. Here's my code for the model:

<?php

class Application_Model_Student
{

    protected $_lastName;
    protected $_firstName;
    protected $_email;
    protected $_concentration;
    protected $_yearEntered;

    public function __construct()
    {
          print "Hello Creation";
    }

}
?>

Is there something wrong with my constructor? Or something in the way that I call it?

Can't answer this without seeing the error. Read the first question in the PHP FAQ or this question to figure out how to enable error reporting. — Mike B
– Mike B, Commented Mar 15, 2012 at 16:53

Lloyd Watkin · Accepted Answer · 2012-03-15 17:03:20Z

1

The only thing I can think of is that the autolader can't find your class and is throwing an exception; resulting in the 500 error.

Two ways to check this:

Manually include your file
Wrap the instantiation in a try{}catch{} to see if it is the autoloader

(actually there's many more ways to check but these are a quick two).

Also don't bother closing the ?> in your class file, can often have whitespace after it causing you header issues in the longer term.

answered Mar 15, 2012 at 17:03

Lloyd Watkin

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Rob Allen · Accepted Answer · 2012-03-17 06:59:58Z

0

Ensure that you have set you APPLICATION_ENV to 'development' so that you can see the error message.

If you still get a white screen, then there's a syntax error in code before this file. turn on error_reporting and error_logging in your php.ini file and look in the error log file created.

answered Mar 17, 2012 at 6:59

Rob Allen

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