js+php implement asynchronous drag and drop upload file _javascript tips

Asynchronous drag and drop upload file--Small instances

Upload.html

<!
DOCTYPE Html> <!--to the change this license header, choose License Headers in Project Properties. To change this template file, choose Tools |
Templates and open the template in the editor.
    -->  

upload.php

Copy Code code as follows:

<?php
Header ("Content-type:text/html;charset=utf-8");
if (Is_uploaded_file ($_files[' AA '] [' tmp_name '])) {
Move_uploaded_file ($_files[' AA '] [' tmp_name '], "./" Iconv ("UTF-8", "GBK", $_files[' AA '] [' name ']);
echo ' 1 ';
}

Xmlhttpreuest.js

function ajaxfunction ()
 {
 var xmlHttp;
 Try
  {
  //Firefox, Opera 8.0+, Safari
  xmlhttp=new XMLHttpRequest ();
  }
 catch (E)
  {
 //Internet Explorer
  try
   {
   xmlhttp=new activexobject ("msxml2.xmlhttp");
   }
  catch (E)
   {
   try
     {
     xmlhttp=new activexobject ("Microsoft.XMLHTTP");
     }
   catch (E)
     {
     alert ("Your browser does not support ajax! ");
     return false;
  }} return xmlHttp;
}

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