PHP文件上传。。检索URL

我正在使用PHP上传一个文件，然后我想获取它的URL，这样我就可以将它添加到数据库中。如何将新文件的URL放入一个可以通过MySQL插入的变量中

<?php
// Configuration - Your Options
  $allowed_filetypes = array('.jpg','.gif','.bmp','.png'); // These will be the types     of file that will pass the validation.
  $max_filesize = 524288; // Maximum filesize in BYTES (currently 0.5MB).
  $upload_path = './files/'; // The place the files will be uploaded to (currently a 'files' directory).

$filename = $_FILES['userfile']['name']; // Get the name of the file (including file   extension).
$ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename.

// Check if the filetype is allowed, if not DIE and inform the user.
if(!in_array($ext,$allowed_filetypes))
  die('The file you attempted to upload is not allowed.');

// Now check the filesize, if it is too large then DIE and inform the user.
if(filesize($_FILES['userfile']['tmp_name']) > $max_filesize)
  die('The file you attempted to upload is too large.');

// Check if we can upload to the specified path, if not DIE and inform the user.
if(!is_writable($upload_path))
  die('You cannot upload to the specified directory, please CHMOD it to 777.');

// Upload the file to your specified path.
if(move_uploaded_file($_FILES['userfile']['tmp_name'],$upload_path . $filename))
     echo 'Your file upload was successful, view the file <a href="' . $upload_path . $filename . '" title="Your File">here</a>'; 
// It worked.
  else
     echo 'There was an error during the file upload.  Please try again.'; // It failed :(.

?>

---

实际上，用php上传的文件存储在一个临时位置/目录中，以便进一步处理。

因此，您可以从，

$_FILES["file"]["tmp_name"]



这是您提供给它的url，用于在服务器位置存储文件副本。

如果要为通过php应用程序上载的文件指定默认选项，

您可以在Php.ini文件->编辑->上传\u tmp\u dir元素到您的愿望中定义它

希望有帮助：）
您正在将文件移动到站点上的某个位置：

move_-upload_文件（$_-FILES['userfile']['tmp_-name']，$upload_-path.$filename）

这就是
$upload\u路径$filename
是文件的相对URL。您可以预先设置站点URL以获得绝对URL。
tmp位置毫无价值，因为它在上载完成后被删除。有关解决方案，请参阅husbas的答案。@OptimuScime两者都是相同的$_文件[“文件”][“tmp_名称”]复制只是一种方法。这是一个简单的问题和简单的答案。