php - 重命名上传的图像不起作用

Question

我正在尝试在上传时更改文件名。这个图像名称是我要插入到数据库中的4f9e9118b753cIMAGE.jpeg，但只有IMAGE.jpeg（原始图像名称）仍然保留在文件系统中。以下是我正在使用的代码部分：

if (isset($_FILES['userupload']['name'])) {
   $uploaddir = "uploads/";

     switch($_FILES['userupload']['type']) {
                case "image/gif":
                case "image/jpeg":
                case "image/jpg":
                case "image/png":
          $uploaddir .= 'pictures/';
          break;
     }         

     foreach($_FILES as $userupload){   
          $t = uniqid();
          $type = $userupload['type'];
          $name = $userupload['name'];
          $size = $userupload['size']; 
          $image_name = $t."$name";


          if(move_uploaded_file($_FILES['userupload']['tmp_name'], $uploaddir . $file)) {
              $query = "INSERT INTO users ( image_name ) VALUES ( '$image_name' )";  
              mysql_query($query) or die (mysql_error());

Answer 1

你需要插入这一行

move_uploaded_file($_FILES["userupload"]["tmp_name"],$uploaddir.$image_name);

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