XF 1.3 ignore_user_abort() has been disabled for security reasons


Well-known member
Logged into XF after transferring it to a new server. I was pretty certain this error message didn't come up before but I think it may have. Can't find anyone who has seen this message before and I'm not sure what it does - maybe a plugin?

ignore_user_abort() has been disabled for security reasons
  1. XenForo_Application::handlePhpError()
  2. ignore_user_abort() in XenForo/Deferred/Abstract.php at line 10
  3. XenForo_Deferred_Abstract->__construct() in XenForo/Deferred/Abstract.php at line 49
  4. XenForo_Deferred_Abstract::create() in XenForo/Model/Deferred.php at line 69
  5. XenForo_Model_Deferred->defer() in XenForo/Application.php at line 1367
  6. XenForo_Application::defer() in XenForo/Model/Cron.php at line 398
  7. XenForo_Model_Cron->updateMinimumNextRunTime() in XenForo/Model/Cron.php at line 421
  8. XenForo_Model_Cron->retriggerCron() in XenForo/ControllerAdmin/Home.php at line 7
  9. XenForo_ControllerAdmin_Home->actionIndex() in EnableDebugFromAdminHome/ControllerAdmin/Home.php at line 7
  10. EnableDebugFromAdminHome_ControllerAdmin_Home->actionIndex() in XenForo/FrontController.php at line 347
  11. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
  12. XenForo_FrontController->run() in /home/myaccount/public_html/admin.php at line 13

Chris D

XenForo developer
Staff member
Nothing to do with my add on. It doesn't run the ignore user abort function.

You know what warning you get when you install or upgrade about disabled PHP functions? That's what this is. Something has been disabled and XenForo needs it.

Contact your host to enable it.


Well-known member
Chris - What do I need to enable? I have a VPS and can enable whatever it is that has been disabled. Many thanks for the insight.