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nospam at nospam dot com
2 years ago
<?php

// Response codes behaviors when using
header('Location: /target.php', true, $code) to forward user to another page:

$code = 301;
// Use when the old page has been "permanently moved and any future requests should be sent to the target page instead. PageRank may be transferred."

$code = 302; (default)
// "Temporary redirect so page is only cached if indicated by a Cache-Control or Expires header field."

$code = 303;
// "This method exists primarily to allow the output of a POST-activated script to redirect the user agent to a selected resource. The new URI is not a substitute reference for the originally requested resource and is not cached."

$code = 307;
// Beware that when used after a form is submitted using POST, it would carry over the posted values to the next page, such if target.php contains a form processing script, it will process the submitted info again!

// In other words, use 301 if permanent, 302 if temporary, and 303 if a results page from a submitted form.
// Maybe use 307 if a form processing script has moved.

?>

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