Question

尝试使用FTP以及该文件夹中包含的所有子文件夹和文件添加删除文件夹的功能。

我已经构建了一个递归函数，我觉得逻辑是正确的，但仍然无效。

我做了一些测试，如果路径只是一个空文件夹或只是一个文件，我可以在第一次运行时删除，但如果它是包含一个文件的文件夹或包含一个空子文件夹的文件夹，则无法删除。因此，遍历文件夹并使用删除功能似乎是一个问题。

有什么想法吗？

function ftpDelete($directory)
{
    if(empty($directory))//Validate that a directory was sent, otherwise will delete ALL files/folders
        return json_encode(false);
    else{
        global $conn_id;
        # here we attempt to delete the file/directory
        if( !(@ftp_rmdir($conn_id,$directory) || @ftp_delete($conn_id,$directory)) )
        {
            # if the attempt to delete fails, get the file listing
            $filelist = @ftp_nlist($conn_id, $directory);

            # loop through the file list and recursively delete the FILE in the list
            foreach($filelist as $file)
                ftpDelete($file);

            #if the file list is empty, delete the DIRECTORY we passed
            ftpDelete($directory);
        }
        else
            return json_encode(true);
    }
};

Answer 1

我花了一些时间在ftp上编写我自己的递归删除函数版本，这个函数应该是完全正常的（我自己测试过）。

尝试并修改它以满足您的需求，如果仍然无法正常工作则还有其他问题。您是否检查了要删除的文件的权限？

function ftp_rdel ($handle, $path) {

  if (@ftp_delete ($handle, $path) === false) {

    if ($children = @ftp_nlist ($handle, $path)) {
      foreach ($children as $p)
        ftp_rdel ($handle,  $p);
    }

    @ftp_rmdir ($handle, $path);
  }
}

Answer 2

好的发现了我的问题。由于我没有进入我试图删除的确切目录，因此调用每个递归文件的路径不是绝对的：

function ftpDeleteDirectory($directory)
{
    global $conn_id;
    if(empty($directory))//Validate that a directory was sent, otherwise will delete ALL files/folders
        return json_encode(false);
    else{
        # here we attempt to delete the file/directory
        if( !(@ftp_rmdir($conn_id,$directory) || @ftp_delete($conn_id,$directory)) )
        {
            # if the attempt to delete fails, get the file listing
            $filelist = @ftp_nlist($conn_id, $directory);
            # loop through the file list and recursively delete the FILE in the list
            foreach($filelist as $file)
            {
            //  return json_encode($filelist);
                ftpDeleteDirectory($directory.'/'.$file);/***THIS IS WHERE I MUST RESEND ABSOLUTE PATH TO FILE***/
            }

            #if the file list is empty, delete the DIRECTORY we passed
            ftpDeleteDirectory($directory);
        }
    }
    return json_encode(true);
};

Answer 3

function recursiveDelete($handle, $directory)
{   echo $handle;
    # here we attempt to delete the file/directory
    if( !(@ftp_rmdir($handle, $directory) || @ftp_delete($handle, $directory)) )
    {            
        # if the attempt to delete fails, get the file listing
        $filelist = @ftp_nlist($handle, $directory);
        // var_dump($filelist);exit;
        # loop through the file list and recursively delete the FILE in the list
        foreach($filelist as $file) {            
            recursiveDelete($handle, $file);            
        }
        recursiveDelete($handle, $directory);
    }
}

Answer 4

您必须检查（使用ftp_chdir）您从ftp_nlist获取的每个“文件”，以检查它是否是目录：

foreach($filelist as $file)
{
    $inDir = @ftp_chdir($conn_id, $file);

    ftpDelete($file)

    if ($inDir) @ftp_cdup($conn_id);
}

这个简单的技巧会起作用，因为如果ftp_chdir有效，那么当前的$file实际上是一个文件夹，你已经进入了它。然后递归调用ftpDelete，让它删除该文件夹中的文件。之后，您返回（ftp_cdup）继续。

删除FTP连接上的文件夹和所有文件

4 个答案: