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php目录文件扫描程序(转)

WBOY
Release: 2016-05-25 16:56:45
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这段代码来自php教程cms觉得很好,所以拿出来分享给大家,有需要的朋友可以参考一下。

/**
 * 文件扫描
 * @param $filepath     目录
 * @param $subdir       是否搜索子目录
 * @param $ex           搜索扩展
 * @param $isdir        是否只搜索目录
 * @param $md5   是否生成MD5验证码
 * @param $enforcement  强制更新缓存
 */
function scan_file_lists($filepath, $subdir = 1, $ex = '', $isdir = 0, $md5 = 0, $enforcement = 0) {
 static $file_list = array();
 if ($enforcement) $file_list = array();
 $flags = $isdir ? GLOB_ONLYDIR : 0;
 $list = glob($filepath.'*'.(!empty($ex) && empty($subdir) ? '.'.$ex : ''), $flags);
 if (!empty($ex)) $ex_num = strlen($ex);
 foreach ($list as $k=>$v) {
  $v1 = str_replace(PHPCMS_PATH, '', $v);
  if ($subdir && is_dir($v)) {
   scan_file_lists($v.DIRECTORY_SEPARATOR, $subdir, $ex, $isdir, $md5);
   continue;
  } 
  if (!empty($ex) && strtolower(substr($v, -$ex_num, $ex_num)) == $ex) {
   if ($md5) {
    $file_list[$v1] = md5_file($v);
   } else {
    $file_list[] = $v1;
   }
   continue;
  } elseif (!empty($ex) && strtolower(substr($v, -$ex_num, $ex_num)) != $ex) {
   unset($list[$k]);
   continue;
  }
 }
 return $file_list;
}
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