An error occurred while uploading a file to another page.

An error occurred while uploading a file. please instruct HTMLcode & lt ;! DOCTYPEhtmlPUBLIC & quot;-// W3C // DTDXHTML1.0Transitional // EN & quot; http://www.w a page about file upload. Error Encountered. please kindly guide

HTML code

  
  Upload.
  
   
Upload your file
   
    
   
      
   

          

This is used to call the following php on the front-end page.

PHP code

  
  ";    echo "clicktherereturn!";}else {    $filepath="upload/";    $name=$filepath.$_FILES["upload"]["name"];    while (file_exists($name))    {        $temp=explode(".", $name);        $name=$temp[0]."0".".".$temp[1];    }    if(move_uploaded_file($_FILES["upfile"]["tmp_name"], $name))    {        if ($_POST["owner"])        {            $owner=$_POST["owner"];        }        else         {            $owner="NULL";        }        if ($_POST["describe"])        {            $describe=$_POST["describe"];        }        else        {            $describe="NONE";        }        $time=date("y-m-d H:m:s");        $content=$_FILES["upload"]["name"]."||".$owner."||".$describe."||".$time."\n";        file_put_contents("record.dat", $content.FILE_APPEND);        echo "name:".$_FILES["upfile"]["name"];        echo "
";        echo "is upload successfull.
";        echo "clicktherereturn!";    }    else     {        echo "upload error!
";        echo "fail!
";        echo "clicktherecheck!";    }}?>

The problem is that after the upload, the system prompts that the file is successfully uploaded, but the file name in the upload folder is a multiple of 0 and there is no file format. what is the problem?


The following errors are prompted ..
Notice: Undefined index: upfile in D: \ phpnow \ htdocs \ B \ up_back.php on line 2

Notice: Undefined index: upload in D: \ phpnow \ htdocs \ B \ up_back.php on line 10