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Simple Page Caching

/ Published in: PHP
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Use this to page cache your pages. Will save page output to a file. Will check file modified date to get from file or retrieve again

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Copy this code and paste it in your HTML 
  1. <?php
  2.     // define the path and name of cached file
  3.     $cachefile = 'cached-files/'.date('M-d-Y').'.php';
  4.     // define how long we want to keep the file in seconds. I set mine to 5 hours.
  5.     $cachetime = 18000;
  6.     // Check if the cached file is still fresh. If it is, serve it up and exit.
  7.     if (file_exists($cachefile) && time() - $cachetime < filemtime($cachefile)) {
  8.     include($cachefile);
  9.         exit;
  10.     }
  11.     // if there is either no file OR the file to too old, render the page and capture the HTML.
  12.     ob_start();
  13. ?>
  14.     <html>
  15.         output all your html here.
  16.     </html>
  17. <?php
  18.     // We're done! Save the cached content to a file
  19.     $fp = fopen($cachefile, 'w');
  20.     fwrite($fp, ob_get_contents());
  21.     fclose($fp);
  22.     // finally send browser output
  23.     ob_end_flush();
  24. ?>

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