--TEST-- Testing class alias with is_subclass_of() --FILE-- <?php class foo { } class_alias('foo', 'bar'); class baz extends bar { } var_dump(is_subclass_of(new foo, 'foo')); var_dump(is_subclass_of(new foo, 'bar')); var_dump(is_subclass_of(new foo, 'baz')); var_dump(is_subclass_of(new bar, 'foo')); var_dump(is_subclass_of(new bar, 'bar')); var_dump(is_subclass_of(new bar, 'baz')); var_dump(is_subclass_of(new baz, 'foo')); var_dump(is_subclass_of(new baz, 'bar')); var_dump(is_subclass_of(new baz, 'baz')); ?> --EXPECT-- bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(true) bool(true) bool(false)