--TEST-- Check type hint compatibility in overrides with array hints. --FILE-- <?php Class C { function f(array $a) {} } echo "Compatible hint.\n"; Class D1 extends C { function f(array $a) {} } echo "Class hint, should be array.\n"; Class D2 extends C { function f(SomeClass $a) {} } ?> ==DONE== --EXPECTF-- Warning: Declaration of D2::f(SomeClass $a) should be compatible with C::f(array $a) in %s on line 8 Compatible hint. Class hint, should be array. ==DONE==