Question

我正在尝试创建一个代码来浏览PHP中的目录

#
# Command line use of 'ffprobe':
#
# ffprobe -loglevel quiet -print_format json \
#         -show_format    -show_streams \
#         video-file-name.mp4
#
# man ffprobe # for more information about ffprobe
#

import subprocess32 as sp
import json


def probe(vid_file_path):
    ''' Give a json from ffprobe command line

    @vid_file_path : The absolute (full) path of the video file, string.
    '''
    if type(vid_file_path) != str:
        raise Exception('Gvie ffprobe a full file path of the video')
        return

    command = ["ffprobe",
            "-loglevel",  "quiet",
            "-print_format", "json",
             "-show_format",
             "-show_streams",
             vid_file_path
             ]

    pipe = sp.Popen(command, stdout=sp.PIPE, stderr=sp.STDOUT)
    out, err = pipe.communicate()
    return json.loads(out)


def duration(vid_file_path):
    ''' Video's duration in seconds, return a float number
    '''
    _json = probe(vid_file_path)

    if 'format' in _json:
        if 'duration' in _json['format']:
            return float(_json['format']['duration'])

    if 'streams' in _json:
        # commonly stream 0 is the video
        for s in _json['streams']:
            if 'duration' in s:
                return float(s['duration'])

    # if everything didn't happen,
    # we got here because no single 'return' in the above happen.
    raise Exception('I found no duration')
    #return None


if __name__ == "__main__":
    video_file_path = "/tmp/tt1.mp4"
    duration(video_file_path) # 10.008

$ scan和$ scanner变量是进入下拉列表以选择下一个文件夹的数组。但是我的代码只能工作两次。

示例：

我们从文件夹开始。

然后下拉列表显示nextfolder

我们现在位于文件夹/ nextfolder。

我们再次选择任何文件夹。

程序转到文件夹/ anyfolder而不是folder / nextfolder / anyfolder。

有什么想法吗？我想我应该继续以某种方式保存当前目录。但我不知道该怎么做。

Answer 1

你需要使用递归函数来做到这一点。

    function navigate($path){
          static $scanned = array();
          $dir = scandir($path,1);

          foreach ($dir as $obj) {
              if(strlen($obj) > 2){
                  if(is_dir($path.$obj)){
                      //directory
                      $scanned = indir($path.$obj.'/');
                  } else {
                      //file

                  }
              }


          }
          return $scanned;
      }

使用php浏览文件夹

1 个答案: