PHP Error [ 2 ]: uksort() expects parameter 1 to be array, null given

application/presenter_modules/Good/Detail/Items.php [ 156 ]

151                 $this->_attribute_mapping[$sa_key] = array();
152             }
153             $this->_attribute_mapping[$sa_key][$ma_key] = $item->id;
154                     
155         }
156         uksort($this->_attribute_mapping, array($this, 'attribute_mapping_keys_comp'));
157         $this->_items_loaded = TRUE;
158         return $this;
159     }
160     
161     /**
  1. APPPATH/presenter_modules/Good/Detail/Items.php [ 156 ] edit » uksort(arguments)

  2. APPPATH/presenter_modules/Good/Detail/Items.php [ 166 ] edit » Good_Detail_Items_PresenterModule->_load_items()

  3. APPPATH/views/presenter_module/good/detail/items.php [ 6 ] edit » Good_Detail_Items_PresenterModule->items()

  4. MODPATH/core/libraries/View.php [ 402 ] edit » include(arguments)

  5. MODPATH/core/libraries/View.php [ 378 ] edit » Closure->_kohana_load_view(arguments)

  6. MODPATH/core/libraries/View.php [ 335 ] edit » View_Core::load_view_and_bind_to(arguments)

  7. MODPATH/presenter/libraries/PresenterModule.php [ 58 ] edit » View_Core->render()

  8. APPPATH/views/presenter/good.php [ 55 ] edit » PresenterModule->render()

  9. MODPATH/presenter/libraries/PresenterController.php [ 199 ] edit » include(arguments)

  10. MODPATH/core/libraries/View.php [ 339 ] edit » PresenterController_Core->_kohana_load_view(arguments)

  11. MODPATH/core/libraries/View.php [ 266 ] edit » View_Core->render()

  12. MODPATH/core/libraries/Response.php [ 46 ] edit » View_Core->__toString()

  13. MODPATH/presenter/libraries/PresenterController.php [ 109 ] edit » Response_Core->setBody(arguments)

  14. {PHP internal call} » PresenterController_Core->process_method_result(arguments)

  15. MODPATH/core/libraries/Router.php [ 403 ] edit » ReflectionMethod->invokeArgs(arguments)

  16. SYSPATH/core/Kohana.php [ 236 ] edit » Router_Core::execute()

  17. SYSPATH/core/Event.php [ 209 ] edit » Kohana::instance()

  18. SYSPATH/core/Bootstrap.php [ 62 ] edit » Event::run(arguments)

  19. DOCROOT/macros/bootstrap.php [ 78 ] edit » require(arguments)

  20. DOCROOT/index.php [ 6 ] edit » require(arguments)

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