PHP在scandir循环中计算子目录级别

Question

我得到以下代码，它扫描目录并以以下格式输出文件和子文件夹：

file1.php
folder1
   file2.php
   folder2
       file3.php
file4.php

对于我的超链接，我需要参考具有层数的链接。所以例如：file1.php，folder1和file4.php都是1级。file2.php，一个folder2是2级，file3.php是3级。

关于如何使用循环计数器来实现这一点的任何建议？

$directory = $_SERVER["DOCUMENT_ROOT"]."/files/";

function folderFleList($dir, $menu_class){
    $ffs = scandir($dir);
    echo "<ul class=\"".$menu_class."\">\n";
    foreach($ffs as $ff){
        if($ff != '.' && $ff != '..'){
            echo '<li class="menu-item"><a href="#" class="menu-link-level-1">'.$ff;
            if(is_dir($dir.'/'.$ff)) folderFleList($dir.'/'.$ff, "menu-sublist");
            echo '</a></li>';
        }
    }
    echo "</ul>\n";
}

folderFleList($directory, "menu-list");

Answer 1

只需为您的函数添加一个额外的参数：

function folderFleList($dir, $menu_class, $level = 1){
    $ffs = scandir($dir);
    echo "<ul class=\"".$menu_class."\">\n";
    foreach($ffs as $ff){
        if($ff != '.' && $ff != '..'){
            echo '<li class="menu-item">
                     <a href="#" class="menu-link-level-' . $level . '">'.$ff;
            if(is_dir($dir.'/'.$ff))
                folderFleList($dir.'/'.$ff, "menu-sublist", $level+1);
            echo '</a></li>';
        }
    }
    echo "</ul>\n";
}

folderFleList($directory, "menu-list");