print_r return BLANK PAGE - PHP

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I have a weird problem, I am using print_r($obj) in Joomla YOOtheme ZOO extension and it returns a blank page. it just act as die() !

it should output the object but it does not.

Please note that print_r() is working fine with some other objects and variables.

I am using XAMPP on Windows.

Any help?

Upon executing print_r() and var_dump(), the page is just blank, no error, view source shows:

&lt;html&gt;
  &lt;head&gt;&lt;/head&gt;
  &lt;body&gt;&lt;/body&gt;
&lt;/html&gt;

Error reporting is turned on.

Answer 1

It is posible that $obj is too big to load, and grabs a lot of memory after which the script stops to work.

Thanks

Is error reporting turned on?

If not add to your code:

ini_set("display_errors", "1");

If it's outputting nothing, $obj contains nothing. Try var_dump() instead. Also, make sure you're seeing all errors that PHP is producing:

ini_set('display_errors', 1);
error_reporting(-1);