Regarding Radon8472's code immediately below; since the response code always appears in the same place (just after the HTTP protocol and version), that's the only place where the response code needs to be looked for. The code could be simplified by parsing the first line separately from the remaining headers.

Incidentally, 305 and 307 responses should also result in redirects.
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Server IP: 203.89.181.186
Probable Submitter: 114.134.161.9
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Manual Page -- http://www.php.net/manual/en/function.get-headers.php
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