刪除FTP連接上的文件夾和所有文件

Question

嘗試使用FTP以及該文件夾中包含的所有子文件夾和文件添加刪除文件夾的功能。

我已經構建了一個遞歸函數來做到這一點，我覺得邏輯是正確的，但仍然無法正常工作。

我做了一些測試，如果路徑只是一個空文件夾或只是一個文件，我可以在第一次運行時刪除，但如果它是包含一個文件的文件夾或包含一個空子文件夾的文件夾，則無法刪除。 因此，遍歷文件夾並使用刪除功能似乎是一個問題。

有任何想法嗎？

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

我花了一些時間在ftp上編寫我自己的遞歸刪除函數版本，這個應該是完全正常的（我自己測試過）。

嘗試並修改它以滿足您的需求，如果仍然無法正常工作則還有其他問題。 您是否檢查了要刪除的文件的權限？

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

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 3

好的，發現我的問題。 由於我沒有進入我試圖刪除的確切目錄，因此調用每個遞歸文件的路徑不是絕對的：

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 4

你必須檢查（使用ftp_chdir ）你從ftp_nlist獲得的每個“文件”，以檢查它是否是一個目錄：

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

    ftpDelete($file)

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

這個簡單的技巧將起作用，因為如果ftp_chdir有效，那么當前的$file實際上是一個文件夾，你已經進入了它。 然后遞歸調用ftpDelete，讓它刪除該文件夾中的文件。 之后，您返回（ftp_cdup）繼續。