<br /><b>Notice</b>: Undefined variable: user_name in <b>C:\xampp\htdocs\form2\edit.php</b> on line <b>7</b><br />
<pre class="lang-html prettyprint-override"><code>&lt;!doctype html&gt;
&lt;html&gt;
&lt;head&gt;
&lt;title&gt;&lt;/title&gt;&lt;/head&gt;
&lt;body&gt;
&lt;form action="#" method="POST" enctype="multipart/form-data"&gt;
&lt;input type="text" name="usname" value = "&lt;?=$user_name;?&gt;"/&gt;
&lt;input type="password" name="psd" value = "&lt;?=$pass_word;?&gt;" /&gt;
&lt;input type="textarea" name="addrs" value = "&lt;?=$address;?&gt;"&gt;
&lt;input type="hidden" name="id" value = "&lt;?=$id?&gt;"/&gt;
&lt;input type="submit" name="submit" value="submit"/&gt;
&lt;/form&gt;
&lt;?php
if(isset($_POST['submit'])){

    $sql= "Update form set user_name='".$_POST['usname']."',
                         pass_word='".$_POST['psd']."',
                         address='".$_POST['addrs']."'
 where id='".$_GET['id']."'
 ";

 $result=mysql_query($sql);
if($result)
{
    echo"data is succesfully data insert";
header("location:login.php");
}else
{echo"";}
}
$id='';
$user_name='';
$pass_word='';
$address='';
$host="localhost";
$username="root";
$password="";
$db="form2";
$con=mysql_connect($host,$username,$password);

if(isset($_GET['id']))
{
 echo $query = "select id,user_name,pass_word,address from form where id=".$_GET['id'];
mysql_select_db($db,$con);

 echo $result=mysql_query($query);
if($result){
    while($row= mysql_fetch_array($result))
     $id=$row['id'];
     $user_name=$row['user_name'];
     $pass_word=$row['pass_word'];
    $address=$row['address'];

    }
}
?&gt;

&lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p><br /><b>Notice</b>:  Undefined variable: user_name in <b>C:\xampp\htdocs\form2\edit.php</b> on line <b>7</b><br /></p>

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<p><br /><b>Notice</b>:  Undefined variable: address in <b>C:\xampp\htdocs\form2\edit.php</b> on line <b>9</b><br />
  submit</p>

<p>i am create a edit.php and update the values <br/></p>

<p>I'm running a PHP script, and maintain getting errors like:</p>