使用 PHP 和 FTP 上传文件，我的错误在哪里？

Question

以下代码从 html 表单中获取文件并将临时文件保存到本地临时文件夹但无法上传到服务器。服务器将从 ftp 客户端上传，但下面的 php 代码返回“无法上传”。 $destDir 有问题？服务器上存在目录...任何帮助表示赞赏。

<?php
// set up basic connection
$ftp_server = "ftp.rf.gd";
$ftp_user_name = "rfgd_19026557";
$conn_id = ftp_connect($ftp_server);
$pass="fakepass";
// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $pass);
//test if the connection is successful
echo '<center>';
$conn_id = ftp_connect($ftp_server);
if (!$conn_id)
    echo '<div style="background-color:red;padding:10px;color:#fff;font-size:16px;">
    Couldn\'t connect to <b>' . $ftp_server . '</b></div>';
else
    echo '<div style="background-color:green;padding:10px;color:#fff;font-size:16px;">
    Connected to <b>' . $ftp_server . '</b></div>';
ftp_pasv($conn_id, true);  // turns on passive mode
// upload a file
$destDir = "Business/pics";
$workDir = "C:\Apache24\htdocs\Images"; // define this as per local system
// get temporary file name for the uploaded file
$tmpName = basename($_FILES["fileToUpload"]['tmp_name']);
// copy uploaded file into current directory
move_uploaded_file($_FILES['fileToUpload']['tmp_name'], $workDir."/".$tmpName) or die("Cannot move uploaded file to working directory");

//Code above this point works

// perform file upload
$upload = ftp_put($conn_id, $destDir."/".$_FILES['fileToUpload']['name'], $workDir."/".$tmpName, FTP_BINARY);
// check upload status
// display message
if (!$upload) {
    echo "Cannot upload";
} else {
    echo "Upload complete";
}
// close the connection
ftp_close($conn_id);
// delete local copy of uploaded file
//unlink($workDir."/".$tmpName) or die("Cannot delete uploaded file from working directory — manual deletion recommended");
?>

Answer 1

$trackErrors = ini_get('track_errors');
ini_set('track_errors', 1);
if (!@ftp_put($conn_id, $destDir."/".$_FILES['fileToUpload']['name'], $workDir."/".$tmpName, FTP_BINARY)) {
   // error message is now in $php_errormsg
   $msg = $php_errormsg;
   ini_set('track_errors', $trackErrors);
   throw new Exception($msg);
}