php上传文件代码

php上传文件代码

HTML的FORM代码中一定要写enctype="multipart/form-data"， 不然获取不到文件数据。

HTML：

        <form id="contrast_form" name="contrast_form" action="test.php" method="POST"  enctype="multipart/form-data">
          <input type="file" name="file" id="file" />
            <br />
            <input type="submit" name="submit" value="Submit" />
        </form>

 PHP：

if ($_FILES["file"]["error"] > 0)
  {
  echo "Error: " . $_FILES["file"]["error"] . "<br />";
  }
else
  {
  echo "File Name: " . $_FILES["file"]["name"] . "<br />";
  echo "Type: " . $_FILES["file"]["type"] . "<br />";
  echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />"; 
  }
 if (file_exists("upload/" . $_FILES["file"]["name"]))
    {
      echo $_FILES["file"]["name"] . " The file alreadly here. ";
    }
else
    {
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/" . $_FILES["file"]["name"]);
      echo "The file save at: " . "upload/" . $_FILES["file"]["name"];
    }