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<?php class Foo {}; class Bar extends Foo {}; function testClass($class=Foo::class) { $reflection = new ReflectionClass($class); return $class->isSubclassOf(Foo::class); } var_dump(testClass(), testClass(Bar::class));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to a member function isSubclassOf() on string in /in/TuAhe:9 Stack trace: #0 /in/TuAhe(12): testClass() #1 {main} thrown in /in/TuAhe on line 9
Process exited with code 255.

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