TP5 of thinkPHP Framework Implementation Background Cache Cleaning Function Example

This article describes the example of TP5 (thinkPHP framework) to achieve background cache clearing function. Share it for your reference, as follows:

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1--common files

/**
 *  Delete directories and files cyclically 
 * @param string $dir_name
 * @return bool
 */
function delete_dir_file($dir_name) {
  $result = false;
  if(is_dir($dir_name)){
    if ($handle = opendir($dir_name)) {
      while (false !== ($item = readdir($handle))) {
        if ($item != '.' && $item != '..') {
          if (is_dir($dir_name . DS . $item)) {
            delete_dir_file($dir_name . DS . $item);
          } else {
            unlink($dir_name . DS . $item);
          }
        }
      }
      closedir($handle);
      if (rmdir($dir_name)) {
        $result = true;
      }
    }
  }
  return $result;
}

2-From the controller

/**
*  Clear the cache 
*/
public function clear() {
    if (delete_dir_file(CACHE_PATH) || delete_dir_file(TEMP_PATH)) {
      $this->success(' Cache clearing succeeded ');
    } else {
      $this->error(' Cache clearing failed ');
    }
}

3-html code

<a href="javascript::void(0)" rel="external nofollow" onclick="clearPhp(this)" data-GetUrl="{:url('login/clear')}"> Clear cache </a>

4--js code

<script>
  function clearPhp(obj) {
    var url=obj.getAttribute('data-GetUrl');
    // Inquiry box 
    layer.confirm(' Are you sure you want to clear it? ', {
          btn: [' Determine ',' Cancel '] // Button 
        },
        function(){
          $.get(url,function(info){
            if(info.code === 1){
              setTimeout(function () {location.href = info.url;}, 1000);
            }
            layer.msg(info.msg);
          });
        },
        function(){});
  }
</script>

Additional features and plug-in addresses: https://www.kancloud.cn/he_he/thinkphp5

For more readers interested in thinkPHP related contents, please check the topics of this site: "ThinkPHP Introduction Tutorial", "thinkPHP Template Operation Skills Summary", "ThinkPHP Common Methods Summary", "codeigniter Introduction Tutorial", "CI (CodeIgniter) Framework Advanced Tutorial", "Zend FrameWork Framework Introduction Tutorial" and "PHP Template Technology Summary".

I hope this article is helpful to the PHP programming based on ThinkPHP framework.