--TEST-- Bug #43651 (is_callable() with one or more nonconsecutive colons crashes) --FILE-- <?php class Test { static function foo() {} } var_dump(is_callable("\\\\")); var_dump(is_callable("\\")); var_dump(is_callable("x\\")); var_dump(is_callable("\\x")); var_dump(is_callable("x\\x")); var_dump(is_callable("x\\\\")); var_dump(is_callable("\\x")); var_dump(is_callable("x\\\\x")); var_dump(is_callable("cd")); var_dump(is_callable("Test\\")); var_dump(is_callable("\\Test")); var_dump(is_callable("\\Test\\")); var_dump(is_callable("Test::foo")); var_dump(is_callable("\\Test::foo")); var_dump(is_callable("is_string")); var_dump(is_callable("\\is_string")); --EXPECT-- bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(true) bool(true) bool(true) bool(true)