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Php ajax file upload code (1/4)

Source: Internet
Author: User
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The code is as follows: Copy code

<Html>
<Body>
<H1> ajax file upload sample <Div id = result> </div>
<Pre class = js name = "code">
<Script language = webpage effect>
// Upload function
Function btn_send.onclick (){
Data = ""
Spliter = "------- 7d8d733180846"
Datadata = data + spliter + ""
Datadata = data + "content-disposition: form-data; name =" photofile "; filename =" c: \ a.txt ""
// Datadata = data + "content-type: image/pjpeg" + vbcrlf
Datadata = data + "content-type: text/plain" + "" + ""
Text = "my name is wilson lin ."
Postlength = text. length + data. length + 2 + spliter. length + 4
Package = data + text + "" + spliter + "--"

Alert (package)
// Send the xml document to the web server
Var xmlhttp = new activexobject ("microsoft. xmlhttp ");
Xmlhttp. open ("post", "./upload. php", false );
Xmlhttp. setrequestheader ("content-type", "multipart/form-data; boundary = ----- 7d8d733180846 ");
Xmlhttp. setrequestheader ("content-length", postlength );
Xmlhttp. send (package );
// Display the information returned by the server
Result. innerhtml = xmlhttp. responsetext;
}
</Script>
</Pre>
</Body>
</Html>


<Html>
<Script language = "javascript">
<! --
Var xmlhttp;
Function createxmlhttprequest (){
If (window. activexobject ){
Xmlhttp = new activexobject ("microsoft. xmlhttp ");
   }
Else if (window. xmlhttprequest ){
Xmlhttp = new xmlhttprequest ();
   }
  }
Function uploade (e ){
Var fileadd
Fileadd = e;
   
Createxmlhttprequest ();
Xmlhttp. onreadystatechange = handlestatechange;
Var url = "pic_upload.asp tutorial? Add = "+ fileadd +" & timestamp = "+ new date (). gettime ();
Xmlhttp. open ("get", url, true );
Xmlhttp. send (null );
  
  }
Function handlestatechange (){
Document. getelementbyid ("content"). innerhtml = "write progress bar ";
If (xmlhttp. readystate = 4 ){
If (xmlhttp. status = 200 ){
     
Document. getelementbyid ("content"). innerhtml = xmlhttp. responsetext;
     
    }
Else {
// Alert (xmlhttp. status );
Alert ('error, please contact the administrator! ');
     
    }
   }
  }
// -->
</Script>
<Body>
<Input type = file name = "mefile" id = "fileadd" onchange = "alert (document. getelementbyid ('fileadd'). value);">
<Input type = "submit" value = "upload" onclick = "uploade (document. getelementbyid ('fileadd'). value);">
<Div id = "content"> </div>
</Body>
</Html>

 

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