Question

I have had some really strange errors here with php today.

I’ve written a little class for A/B Testing and wanted to create a new instance in a php document of mine:

if(!class_exists('ab_tester')) include('../lib/php/ab_tester.php');
$ab = new ab_tester($user['id']);

One would think this should do the trick, but php says:

Fatal error: Cannot redeclare class ab_tester in [PATH_TO_PHP]ab_tester.php on line 10

Why does this happen?

Note: Line 10 of the ab_tester.php looks like this:

class ab_tester {

If I leave the include line out, creating a new instance of ab_tester, it spits out:

Fatal error: Class 'ab_tester' not found in [PATH_TO_PHP]returning.php on line 25

What do I do now? If I try to import it, it’s already there and if I don’t, its missing.

Answer 1

And what do the first 9 lines of code in ab_tester.php contain?

I bet that there is another class ab_tester there (or in an include, anyway)

EDIT:

Another possible explanation is that you are doing a second include of ab_tester.php later on the code of returning.php. So even if you use include_once in this particular line, the second call is still just an include…