php foreach正序倒序输出示例代码

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 class="world-cup-'.$date.'">';
            echo '<a href="'.$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 class="world-cup-'.$date.'">';
            echo '<a href="'.$directory.$file.'" rel="worldcup" title="巴西世界杯赛事'.$date.'">';
            echo '<img src="'.$directory.$file.'" alt="">';
            echo '</a>';
            echo '</li>';
        }
    }