php - ftp_get - 警告:ftp_get():打开 BINARY 模式数据连接

问题描述

我正在尝试编写一个从 FTP 服务器下载文件的脚本.它们都相当大(每个近 2GB).该脚本开始运行，但最终因上述错误而终止.和大小有关吗?有没有解决的办法?代码如下:

I'm trying to write a script that will download files from an FTP server. They're all fairly large (nearly 2GB each). The script starts running, but then eventually terminates with the above error. Is it size related? Is there a way around this? Here's the code:

<?php

$ftp_server = "ftp.EXAMPLE.com";
$conn_id = ftp_connect ($ftp_server) or die("Couldn't connect to $ftp_server");
$login_result = ftp_login($conn_id, "USERNAME", "PASSWORD");
if ((!$conn_id) || (!$login_result)) die("FTP Connection Failed");
ftp_sync("download");   
ftp_close($conn_id); 

$mkdir = date('Y-m-d');
mkdir('encrypted/'.$mkdir, 0777);
smartCopy("./download/", 'encrypted/'.$mkdir);
chmodr("encrypted/".$mkdir, 0777);

function ftp_sync ($dir) {

    global $conn_id;

    if ($dir != ".") {
        if (ftp_chdir($conn_id, $dir) == false) {
            echo ("Change Dir Failed: $dir<BR>
");
            return;
        }
        if (!(is_dir($dir)))
            mkdir($dir);
        chdir ($dir);
    }

    $contents = ftp_nlist($conn_id, ".");
    foreach ($contents as $file) {

        if ($file == '.' || $file == '..')
            continue;

        if (@ftp_chdir($conn_id, $file)) {
            ftp_chdir ($conn_id, "..");
            ftp_sync ($file);
        }
        else
            ftp_get($conn_id, $file, $file, FTP_BINARY);
    }

    ftp_chdir ($conn_id, "..");
    chdir ("..");

}

function chmodr($path, $filemode) {
    if (!is_dir($path))
        return chmod($path, $filemode);

    $dh = opendir($path);
    while (($file = readdir($dh)) !== false) {
        if($file != '.' && $file != '..') {
            $fullpath = $path.'/'.$file;
            if(is_link($fullpath))
                return FALSE;
            elseif(!is_dir($fullpath) && !chmod($fullpath, $filemode))
                    return FALSE;
            elseif(!chmodr($fullpath, $filemode))
                return FALSE;
        }
    }

    closedir($dh);

    if(chmod($path, $filemode))
        return TRUE;
    else
        return FALSE;
}

function smartCopy($source, $dest, $folderPermission='0777',$filePermission='0777'){

    $result=false;

    if (is_file($source)) {
        if(is_dir($dest)) {
            if ($dest[strlen($dest)-1]!='/') 
                $__dest=$dest."/";
            $__dest .= basename($source);
            }
        else { 
            $__dest=$dest;
            }
        $result=copy($source, $__dest);
        chmod($__dest,$filePermission);
        }
    elseif(is_dir($source)) { 
        if(!is_dir($dest)) {
            @mkdir($dest,$folderPermission);
            chmod($dest,$folderPermission);
            }
        if ($source[strlen($source)-1]!='/') 
            $source=$source."/";
        if ($dest[strlen($dest)-1]!='/') 
            $dest=$dest."/";

        $return = true;
        $dirHandle=opendir($source);
        while($file=readdir($dirHandle)) { 
            if($file!="." && $file!="..") { 
                $result=smartCopy($source.$file, $dest.$file, $folderPermission, $filePermission);
                }
            }
        closedir($dirHandle);
        }
    else {
        $result=false;
        }
    return $result;
}

function deleteDirectory($dir) {
    if (!file_exists($dir)) return true;
    if (!is_dir($dir) || is_link($dir)) return unlink($dir);
        foreach (scandir($dir) as $item) {
            if ($item == '.' || $item == '..') continue;
            if (!deleteDirectory($dir . "/" . $item)) {
                chmod($dir . "/" . $item, 0777);
                if (!deleteDirectory($dir . "/" . $item)) return false;
            };
        }
        return rmdir($dir);
    } 
?>

推荐答案

你确定每个文件都是二进制的吗?

Are you sure each file is binary?

您可以尝试从扩展名中猜测文件类型以调整下载模式，如以下评论中所建议:http://www.php.net/manual/fr/function.ftp-get.php#86516

You may try to guess the file type from its extension in order to adjust the download mode, as suggested in this comment: http://www.php.net/manual/fr/function.ftp-get.php#86516

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