Question

I am trying to make a simple AJAX calling in PHP and have a problem with Internal error 500. When I click on the link, so the data are successfully loaded – this I see through FireBug, but I got the error above. It’s on localhost.
When I try to set to the URL of a browser the address, that is called by AJAX, so the content is successfully loaded.

Where I should start to search the problem – or what could be wrong?

EDIT: in apache log is nothing weird, looks fine.

Answer 1

If after checking your php error log you don’t find any issues, could it be your javascript AJAX call expects results to be returned in a specific format like JSON?

If this is the case, you need PHP to set the correct content type header when it is responding to the AJAX call, like so:

header('Content-type: application/json');

So in context, this might look something like:

$some_data = array(
  'user_id' => 47,
  'first_name' => 'Mike',
);

header('Content-type: application/json');
echo json_encode($some_data);