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run code in 200+ php & hhvm versions
Bugs & Features
<?php class Invoker { public function __invoke() { echo 'hello!'; } } class Obj { public static function method() { } } function doClosure(Closure $closure) { echo 'didClosure...'; $closure(); } function doCallable(callable $cb) { echo 'didCallable...'; $cb(); } doCallable(function () {}); // works doCallable(new Invoker()); // works doCallable(['Obj', 'method']); // works doClosure(function () {}); // works doClosure(new Invoker()); // does not work doClosure(['Obj', 'method']); // does not work
Output for 7.2.4
didCallable...didCallable...hello!didCallable...didClosure... Fatal error: Uncaught TypeError: Argument 1 passed to doClosure() must be an instance of Closure, instance of Invoker given, called in /in/f1sn8 on line 35 and defined in /in/f1sn8:17 Stack trace: #0 /in/f1sn8(35): doClosure(Object(Invoker)) #1 {main} thrown in /in/f1sn8 on line 17
Process exited with code 255.