HipHop Warning: Constant FOO already defined in %s on line 14
HipHop Warning: Constants may only evaluate to scalar values in %s on line 15
int(42)
string(5) "hello"
=== Enter define_b.php ===
int(42)
string(5) "baz_b"
=== Leave define_b.php ===
string(5) "baz_b"
HipHop Warning: Constant BAZ already defined in %s on line 23
string(5) "baz_b"
HELLOHELLO
HipHop Fatal error: Cannot access static:: when no class scope is active in %s on line 34