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PHP sample code to force update image cache

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Release： 2016-07-25 08:55:22
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  2. /**Force update of image cache
  3. * @param Array $files Image to be updated
  4. * @param int $version version
  5. * @edit bbs.it-home.org
  6. */
  7. function force_reload_file($files=array(), $version=0){
  8. $html = '';
  9. if(!isset($_COOKIE['force_reload_page_'.$version])){ // 判断是否已更新过
  10. setcookie('force_reload_page_'.$version, true, time()+2592000);
  11. $html .= '';
  12. echo $html;
  13. exit();
  14. }else{ // 读取图片一次,针对chrome优化
  15. if($files){
  16. $html .= '';
  17. }
  18. }
  19. return $html;
  20. }
  22. // 调用方法
  23. $files = array(
  24. 'images/1.jpg',
  25. 'images/2.jpg',
  26. 'images/3.jpg',
  27. 'images/4.jpg'
  28. );
  29. $html = force_reload_file($files, 1); //更新缓存文件
  30. echo $html;
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PHP强制更新图片缓存的示例代码
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