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PHP cache Files

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Copy this code and paste it in your HTML 
  1. $cachefile = 'cache.html';
  2. $cachetime = 4 * 60;
  3. // Serve from the cache if it is younger than $cachetime
  4. if (file_exists($cachefile) && time() - $cachetime < filemtime($cachefile)) {
  5.     include($cachefile);
  6.     echo "<!-- Cached copy, generated ".date('H:i', filemtime($cachefile))." -->\n";
  7.     exit;
  8. }
  9. ob_start(); // Start the output buffer
  10.  
  11. /* Heres where you put your page content */
  12.  
  13. // Cache the contents to a file
  14. $cached = fopen($cacheFile, 'w');
  15. fwrite($cached, ob_get_contents());
  16. fclose($cached);
  17. ob_end_flush(); // Send the output to the browser

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