如果图像没有上传到服务器，如何调试

1 回答

• 0

  我们从这里开始吧 . 我会将 copy() 函数更改为 move_uploaded_file() 函数 .

  其次，您需要检查以确保下载目标的路径存在 . 如果没有，那么我们需要创建它 .

  我们还需要确保文件夹/文件具有能够写入的权限 . 如果没有，则更改文件夹/文件权限 .

  完成后，将文件夹/文件权限更改回原来的状态 .

  像这样：

  $uploaddir = 'DocumentClient/';
  $cid=$_POST['cid'];
  $type = $_POST['type'];
  $filetype = $_POST['filetype'];
  
  include('../Config.php');
  
  $conn = mysqli_connect("localhost","$username","$password","$db");
  // Check connection
  if ($conn->connect_error) 
  {
      die("Connection failed: " . $conn->connect_error);
  }
  else
  {
          $_FILES["uploadedfile"]["name"]=$cid.$type.".jpg";
  
          $uploadfile = $uploaddir . basename($_FILES['uploadedfile']['name']);
  
          //Check to see if the folder exist.
          if(!file_exists($uploaddir)) {
  
          mkdir($uploaddir, 0777, true); //If it does not exist then create it and set permissions to be able to write.
  
          }
  
          //The folder does exist at this point. Check to see if it's writable.
          if(!is_writable($uploaddir)){
  
            chmod($uploaddir, 0777); //The folder is not writeable. Set the folder to be able to write.
  
          }
  
          if (move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $uploadfile)) 
          {
          $filename="DocumentClient/".$_FILES["uploadedfile"]["name"];  
          if($type == "Address"){
              $sql = "Update `Clients` SET `DocAddress`='$filename' Where CID='$cid'";
          }else if($type == "ID"){
              $sql = "Update `Clients` SET `DocIdProof`='$filename' Where CID='$cid'";
          }else if($type == "GramPanchayat"){
              $sql = "Update `Clients` SET `DocGrampanchyat`='$filename' Where CID='$cid'";
          }
  
              if ($conn->query($sql) === TRUE) 
              {
  
              } 
              else 
              {
              echo "Error: " . $sql . "<br>" . $conn->error;    
              }
          $conn->close();
  
          //Reset the permissions back to what you need them to be.
          //You probably want 0755
          chmod($uploaddir, 0755);
          chmod($uploadfile, 0644); //Sets your new file to read only.
  
          //Add this code below to test.
          if(file_exists($uploadfile)) {
  
          echo 'Your file exist.';
  
          }else{
  
            echo 'You file does not exist.';
  
            }
  
      }
      else 
      {
      echo "Upload failed";
      }
  
  }
  

  一些资源供您阅读 .

  move_uploaded_file()

  is_writeable()

  chmod()

  您还需要阅读文件权限以及如何正确设置它们 . 如果没有正确执行此操作，可能会导致不必要的安全问题 .

  希望这可以帮助 .

  回复于 2024-04-29T06:59:24+08:00