title: PHP __autoload Cannot redeclare
body: <p>I started to use the PHP __autoload function and now I'm getting those weird Fatal error: Cannot redeclare class xxx errors.</p>
  
  <p>It's weird since these errors occur on classes I don't even load with the autoload function. And I also use require_once to include the files.</p>
  
  <p>I'm really puzzled about this. Anyone knows anything about this kind of errors when using autoload?</p>