实现代码：

// 正序 foreach($files as $file_num => $file) { if(is_file($directory.$file)){ //$file = iconv("gb2312","UTF-8",$file); //或者 iconv("gb2312","UTF-8",$value); $date = substr($file,0,9); echo '<li.$date.'">'; echo '<a href="'.$directory.$file.'" rel="worldcup" title="巴西世界杯赛事'.$date.'">'; echo '<img src="'.$directory.$file.'" alt="">'; echo '</a>'; echo '</li>'; } } // 倒序 foreach(array_reverse($files) as $file_num => $file) { if(is_file($directory.$file)){ //$file = iconv("gb2312","UTF-8",$file); //或者 iconv("gb2312","UTF-8",$value); $date = substr($file,0,9); echo '<li.$date.'">'; echo '<a href="'.$directory.$file.'" rel="worldcup" title="巴西世界杯赛事'.$date.'">'; echo '<img src="'.$directory.$file.'" alt="">'; echo '</a>'; echo '</li>'; } }