使用PHP将目录结构(字符串)解析为JSON

Question

我有一个像这样的文件路径字符串数组

• 视频/滑稽/ jelloman.wmv
• 视频/滑稽/ bellydance.flv
• 视频/ abc.mp4
• 视频/ june.mp4
• 视频/ cleaver.mp4
• 音频/ uptown.mp3
• 音频/ juicy.mp3
• fun.wmv
• jimmy.wmv
• herman.wmv

最终目标是让他们到jsTree.我从上面的示例字符串中构建了一个原型树.看看:http://jsfiddle.net/ecropolis/pAqas/

Answer 1

首先,我将创建一个递归函数,将您的目录迭代到一个数组中

function ReadFolderDirectory($dir,$listDir= array())
{
    $listDir = array();
    if($handler = opendir($dir))
    {
        while (($sub = readdir($handler)) !== FALSE)
        {
            if ($sub != "." && $sub != ".." && $sub != "Thumb.db")
            {
                if(is_file($dir."/".$sub))
                {
                    $listDir[] = $sub;
                }elseif(is_dir($dir."/".$sub))
                {
                    $listDir[$sub] = $this->ReadFolderDirectory($dir."/".$sub); 
                } 
            } 
        }    
        closedir($handler); 
    } 
    return $listDir;    
}

然后输出数组json_encode.

来源使用自:http://www.php.net/manual/en/function.readdir.php#87733

Answer 2

我能够使用这个优秀的解决方案（@Casablanca 发布的底部解决方案）将上述字符串处理为递归数组结构。 将路径数组转换为 UL 列表

<?php
    $paths = array('videos/funny/jelloman.wmv','videos/funny/bellydance.flv','videos/abc.mp4','videos/june.mp4','videos/cleaver.mp4','audio/uptown.mp3','audio/juicy.mp3','fun.wmv', 'jimmy.wmv','herman.wmv');
    sort($paths); 
    $array = array();
    foreach ($paths as $path) {
      $path = trim($path, '/');
      $list = explode('/', $path);
      $n = count($list);

      $arrayRef = &$array; // start from the root
      for ($i = 0; $i < $n; $i++) {
        $key = $list[$i];
        $arrayRef = &$arrayRef[$key]; // index into the next level
      }
    }

    function buildUL($array, $prefix,$firstrun) {     
        $c = count($array);
      foreach ($array as $key => $value) {
            $path_parts = pathinfo($key);
            if($path_parts['extension'] != '') {
                $extension = $path_parts['extension'];
            } else {
                $extension = 'folder';
            }
            if ($prefix == '') { //its a folder
                echo ' { "data":"'.$key.'"';
            } else { //its a file
                echo '{"data" : {"title":"'.$key.'"},"attr":{"href": "'.$prefix.$key.'","id": "1239"},
                "icon": "images\/'.$extension.'-icon.gif"';
            }
            // if the value is another array, recursively build the list$key
            if (is_array($value)) {
                echo ',"children" : [ ';
                buildUL($value, "$prefix$key/",false);
            }
            echo "}";
            $c = $c-1;
            if($c != 0) {
                echo ",";
            }
      } //end foreach
     if($firstrun != true) 
      echo "]";
    }

    echo '{ "data" : [';
    buildUL($array, '',true);
    echo '] }';
?>