Dear Maintainer,
icingaweb2 does not work with php8.1 from experimental.
The web page shows lots of deprecations and a fatal error:
Deprecated: Return type of Icinga\Application\Libraries::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Application/Libraries.php on line 20
Deprecated: Return type of Icinga\Application\Config::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Application/Config.php on line 125
Deprecated: Return type of Icinga\Application\Config::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Application/Config.php on line 145
Deprecated: Return type of Icinga\Application\Config::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Application/Config.php on line 175
Deprecated: Return type of Icinga\Application\Config::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Application/Config.php on line 165
Deprecated: Return type of Icinga\Application\Config::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Application/Config.php on line 155
Deprecated: Return type of Icinga\Application\Config::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Application/Config.php on line 135
Deprecated: Return type of Icinga\Web\Session\SessionNamespace::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Web/Session/SessionNamespace.php on line 35
Deprecated: Return type of Zend_Controller_Action_HelperBroker_PriorityStack::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker/PriorityStack.php on line 91
Deprecated: Return type of Zend_Controller_Action_HelperBroker_PriorityStack::offsetExists($priorityOrHelperName) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker/PriorityStack.php on line 102
Deprecated: Return type of Zend_Controller_Action_HelperBroker_PriorityStack::offsetGet($priorityOrHelperName) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker/PriorityStack.php on line 117
Deprecated: Return type of Zend_Controller_Action_HelperBroker_PriorityStack::offsetSet($priority, $helper) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker/PriorityStack.php on line 137
Deprecated: Return type of Zend_Controller_Action_HelperBroker_PriorityStack::offsetUnset($priorityOrHelperName) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker/PriorityStack.php on line 173
Deprecated: Return type of Zend_Controller_Action_HelperBroker_PriorityStack::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker/PriorityStack.php on line 198
Deprecated: Return type of Zend_View_Helper_Placeholder_Container_Standalone::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/View/Helper/Placeholder/Container/Standalone.php on line 317
Deprecated: Return type of Zend_View_Helper_Placeholder_Container_Standalone::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/View/Helper/Placeholder/Container/Standalone.php on line 261
Deprecated: Return type of Zend_View_Helper_Placeholder_Container_Standalone::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/View/Helper/Placeholder/Container/Standalone.php on line 273
Deprecated: Return type of Zend_View_Helper_Placeholder_Container_Standalone::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/View/Helper/Placeholder/Container/Standalone.php on line 284
Deprecated: Return type of Zend_View_Helper_Placeholder_Container_Standalone::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/View/Helper/Placeholder/Container/Standalone.php on line 296
Deprecated: Return type of Zend_View_Helper_Placeholder_Container_Standalone::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/View/Helper/Placeholder/Container/Standalone.php on line 307
Deprecated: Return type of Zend_Paginator::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/Paginator.php on line 513
Deprecated: Return type of Zend_Paginator::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/icingaweb2/library/vendor/Zend/Paginator.php on line 815
Deprecated: Return type of Icinga\Authentication\AuthChain::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Icinga/Authentication/AuthChain.php on line 200
Fatal error: Uncaught ErrorException: Uncaught Zend_Controller_Response_Exception: Cannot send headers; headers already sent in /usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker/PriorityStack.php, line 30 in /usr/share/icingaweb2/library/vendor/Zend/Controller/Response/Abstract.php:321 Stack trace: #0 /usr/share/icingaweb2/library/vendor/Zend/Controller/Response/Abstract.php(148): Zend_Controller_Response_Abstract->canSendHeaders() #1 /usr/share/php/Icinga/Web/Response.php(356): Zend_Controller_Response_Abstract->setRedirect() #2 /usr/share/php/Icinga/Web/Response.php(407): Icinga\Web\Response->prepare() #3 /usr/share/icingaweb2/library/vendor/Zend/Controller/Response/Abstract.php(762): Icinga\Web\Response->sendHeaders() #4 /usr/share/icingaweb2/library/vendor/Zend/Controller/Front.php(975): Zend_Controller_Response_Abstract->sendResponse() #5 /usr/share/php/Icinga/Application/Web.php(304): Zend_Controller_Front->dispatch() #6 /usr/share/php/Icinga/Application/webrouter.php(107): Icinga\Application\Web->dispatch() #7 /usr/share/icingaweb2/public/index.php(4): require_once('...') #8 {main} thrown in /usr/share/icingaweb2/library/vendor/Zend/Controller/Response/Abstract.php:321 Stack trace: #0 [internal function]: Icinga\Application\Web->Icinga\Application\{closure}() #1 {main} Next Zend_Controller_Exception: Uncaught Zend_Controller_Response_Exception: Cannot send headers; headers already sent in /usr/share/icingaweb2/library/vendor/Zend/Controller/Action/HelperBroker/PriorityStack.php, line 30 in /usr/share/icingaweb2/library/vendor/Zend/Controller/Response/Abstract.php:321 Stack trace: #0 /usr/share/icingaweb2/library/vendor/Zend/Controller/Response/Abstract.php(148): Zend_Controller_Response_Abstract->canSendHeaders() #1 /usr/share/php/Icinga/Web/Response.php(356): Zend_Controller_Response_Abstract->setRedirect() #2 /usr/share/php/Icinga/Web/Response.php(407): Icinga\Web\Response->prepare() #3 /usr/share/icingaweb2/library/vendor/Zend/Controller/Response/Abstract.php(762): Icinga\Web\Response->sendHeaders() #4 /usr/share/icingaweb2/library/vendor/Zend/Controller/Front.php(975): Zend_Controller_Response_Abstract->sendResponse() #5 /usr/share/php/Icinga/Application/Web.php(304): Zend_Controller_Front->dispatch() #6 /usr/share/php/Icinga/Application/webrouter.php(107): Icinga\Application\Web->dispatch() #7 /usr/share/icingaweb2/public/index.php(4): require_once('...') #8 {main} thrown#0 [internal function]: Icinga\Application\Web->Icinga\Application\{closure}() #1 {main} in /usr/share/icingaweb2/library/vendor/Zend/Controller/Plugin/Broker.php:259 Stack trace: #0 /usr/share/icingaweb2/library/vendor/Zend/Controller/Front.php(906): Zend_Controller_Plugin_Broker->routeShutdown() #1 /usr/share/php/Icinga/Application/Web.php(471): Zend_Controller_Front->dispatch() #2 [internal function]: Icinga\Application\Web->Icinga\Application\{closure}() #3 {main} thrown in /usr/share/icingaweb2/library/vendor/Zend/Controller/Plugin/Broker.php on line 259
Kind Regards,
Bas