从HTML输入将图像上传到ftp

Question

我试图将图像存储在FTP服务器上以用于其他页面，但我得到了多个错误，试图获得这项工作。在XAMPP上运行一切。首先，我用输入HTML页上：

<input type="file" name="image" required> 

然后我把它过度，并尝试将其上传：

$image = $_POST["image"]; 
$ftpCon = ftp_connect("127.0.0.1", "21") or die("Could not connect to FTP"); 
ftp_fput($ftpCon, "image.png", $image, FTP_BINARY); 
ftp_close($ftpCon); 

有了这个代码，我得到这个错误：“ftp_fput（）预计参数3要资源，串给”

Answer 1

当您通过表单上载项目（文件）时，它会填充到$ _FILES超全局中。

An associative array of items uploaded to the current script via the HTTP POST method.

http://se2.php.net/manual/en/reserved.variables.files.php

确保您还设置形式与enctype='multipart/form-data'

所以PHP的第一行已更改为：

$image = $_FILES['image']['tmp_name']; 

的$ _FILES是associtaive并包含以下数据：

（userfile的=像，你的情况）

$_FILES['userfile']['name'] 
The original name of the file on the client machine. 
$_FILES['userfile']['type'] 
The mime type of the file, if the browser provided this information. An example would be "image/gif". This mime type is however not checked on the PHP side and therefore don't take its value for granted. 
$_FILES['userfile']['size'] 
The size, in bytes, of the uploaded file. 
$_FILES['userfile']['tmp_name'] 
The temporary filename of the file in which the uploaded file was stored on the server. 
$_FILES['userfile']['error'] 
The error code associated with this file upload. This element was added in PHP 4.2.0 

Answer 2

更改线路

$image = $_POST["image"]; 

到

$image = $_FILES['image']['tmp_name'];