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How do I do this in windows os
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You mentioned you were using htaccess. You need to modify your <u>.htacess</u> file and add the code you require to redirect all your users.
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window has not any differences for usage. <br />
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just enable modrewrite engine from apache config if required.
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redirect <a href="http://website.com" rel="ugc">http://website.com</a>&nbsp;to <a href="http://www.website.com" rel="ugc">http://www.website.com</a>&nbsp;for every page<br />
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using php only (on httacess)<br />
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is it bad for search engine optomization to just use php to redirect to www
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redirect http://website.com to http://www.website.com for every page


using php only (on httacess)

is it bad for search engine optomization to just use php to redirect to www

www redirection

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.