Variable names can not start with a number.
Also, since PHP obviously compiled without errors, and the engine is running (it reported an error!), this isn't really an "Install" issue, rather a "Coding" issue, perhaps even a "Newbie" issue. (Not being offensive; everyone starts somewhere.)
EDIT: Also, I got this error with your script (on PHP 4.3.7):
Parse error: parse error, unexpected T_LNUMBER, expecting T_VARIABLE or '$' in c:\program files\apache group\apache\htdocs\wtf.php on line 3
Made it a bit more obvious for me 😉