redirect on apache 2.0

Hello all... I have a site running http/https on it. I would like to
redirect all http incoming requests to the https (SSL). Unfortunately, what
I'm trying does not work.... I basically created an index.php in the
DocumentRoot, modified http.conf file and restarted apache w/out any luck.

The contents of the index.php file are as follows:

<?
header("location:https://sitename.com/index.html";);
exit;
?>

What I get back is a blank, white web page.

Thanks for any assistance.

Al


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