Write a simple PHP program which implements Ajax for addition of two numbers

Add.php

<html>
<head>
   <script language="javascript" src="ajax.js">
   </script>
</head>
<body>
<div id="txt" name="txt"></div>
   <form action="javascript:add(document.getElementById('frm'));" name="frm" id="frm">
  <table>
   <tr>
     <td>Enter first number : </td>
     <td><input type="text" id="num1"></td>
     </tr>
     <tr>
     <td>Enter second number : </td>
     <td><input type="text" id="num2"></td>
     </tr>
     <tr>
       <td colspan="2"><input type="submit" name="button" value="show"></td>
     </tr>
</table>
</form>
</body>
</html>

ajax.js

function add(obj)
{
   var XMLHttpRequestObject=false;
   if(window.XMLHttpRequest)
   {
     XMLHttpRequestObject=new XMLHttpRequest();
    }
   else if(window.ActiveXObject)
    {
      XMLHttpRequestObject=new ActiveXObject("Microsoft.XMLHTTP");
    }
   var str1="num1="+document.getElementById("num1").value;
   var str2="&num2="+document.getElementById("num2").value;
   XMLHttpRequestObject.onreadystatechange=show;
  XMLHttpRequestObject.open('POST','value.php',true);
  XMLHttpRequestObject.setRequestHeader("Content-type","application/x-www-form-urlencoded");
  XMLHttpRequestObject.send(str1+str2);
  function show()
  {
    if(XMLHttpRequestObject.readyState==4)
    {
     if(XMLHttpRequestObject.status==200)
     {
       result=XMLHttpRequestObject.responseText;
       document.getElementById('txt').innerHTML=result;
     }
   }
  }
}

value.php

<?php
    $num1=$_POST['num1'];
    $num2=$_POST['num2'];
    $num3=$num1+$num2;
    echo $num3;
?>
                     

Comments

Post a Comment

Popular posts from this blog

Create an XML file which gives details of books available in “ABC Bookstore” from following categories. 1)      Technical 2)      Cooking 3)      Yoga And elements in each category are in the following format.     …….     …….     ……. Save the file as “Book.xml” Create an application that reads “Book.xml” file into simple XML object. Display attributes and elements. (Hint:- Use simple_xml_load_file() function). 

Book.XML <?xml version="1.0" encoding="utf-8"?> <ABCBOOK>         <Technical>         <BOOK>         <Book_PubYear>ABC</Book_PubYear>         <Book_Title>pqr</Book_Title>         <Book_Author>400</Book_Author>         </BOOK>         </Technical>          <Cooking>         <BOOK>         <Book_PubYear>ABC</Book_PubYear>         <Book_Title>pqr</Book_Title>         <Book_Author>400</Book_Author>         </BOOK>...
Read more

Write a PHP script to demonstrate the introspection for examining class(use function get_declared_classes() ,get_class_methods() and get_class_vars()).

<?php classMyclass           { public $a; public $b=10; public $c='ABC'; functionMyclass()             {               //Myclass function             } function myfun1()             {                //functin             } function myfun2()             {                //functin             }           } $class=get_declared_classes(); foreach($class as $cname) { echo"$c...
Read more