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<?php class MyQuery{ public function query() { die('callable called'); } } class QueryHandler { public $query; public function setQuery(callable $query) { echo "checkpoint 1 reached"."\n"; $this->query = $query; } public function runQuery(){ $this->$query(); echo "end (should not show)"."\n"; } } echo "start"."\n"; $myQuery = new MyQuery; $queryHandler = new QueryHandler; $queryHandler->setQuery($myQuery->query); $queryHandler->runQuery();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
start Warning: Undefined property: MyQuery::$query in /in/9TgDG on line 37 Fatal error: Uncaught TypeError: QueryHandler::setQuery(): Argument #1 ($query) must be of type callable, null given, called in /in/9TgDG on line 37 and defined in /in/9TgDG:19 Stack trace: #0 /in/9TgDG(37): QueryHandler->setQuery(NULL) #1 {main} thrown in /in/9TgDG on line 19
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
start Notice: Undefined property: MyQuery::$query in /in/9TgDG on line 37 Fatal error: Uncaught TypeError: Argument 1 passed to QueryHandler::setQuery() must be callable, null given, called in /in/9TgDG on line 37 and defined in /in/9TgDG:19 Stack trace: #0 /in/9TgDG(37): QueryHandler->setQuery(NULL) #1 {main} thrown in /in/9TgDG on line 19
Process exited with code 255.
Output for 7.3.32 - 7.3.33
start Fatal error: Uncaught TypeError: Argument 1 passed to QueryHandler::setQuery() must be callable, null given, called in /in/9TgDG on line 37 and defined in /in/9TgDG:19 Stack trace: #0 /in/9TgDG(37): QueryHandler->setQuery(NULL) #1 {main} thrown in /in/9TgDG on line 19
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
start Notice: Undefined property: MyQuery::$query in /in/9TgDG on line 37 Catchable fatal error: Argument 1 passed to QueryHandler::setQuery() must be callable, null given, called in /in/9TgDG on line 37 and defined in /in/9TgDG on line 19
Process exited with code 255.
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