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ErroDocument

Apache's ErrorDocument directive can come in handy. For example, this line in your Apache configuration file:

ErrorDocument 404 /error.php

1. $REDIRECT_ERROR_NOTES - File does not exist: /docroot/bogus
2. $REDIRECT_REQUEST_METHOD - GET
3. $REDIRECT_STATUS - 404
4. $REDIRECT_URL - /docroot/bogus

Don't forget to send a 404 status if you choose not to redirect to a real page.

<? Header('HTTP/1.0 404 Not Found'); ?>

1. Search for closest matching valid URL and redirect
2. Use attempted url text as a DB keyword lookup
3. Funky caching

Funky Caching

ErrorDocument 404 /generate.php

<?php
$s = $REDIRECT_URI;
$d = $DOCUMENT_ROOT;
// determine requested uri
$uri = substr($s, strpos($s,$d) + strlen($d) + 1);
ob_start(); // Start buffering output
// ... code to fetch and output content from DB ...
$data = ob_get_contents();
$fp = fopen("$DOCUMENT_ROOT/$uri",'w');
fputs($fp,$data);
fclose($fp);
ob_end_flush(); // Flush and turn off buffering
?>

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