Question

if(isset($_POST['submit'])){

$domain=$_POST['domain'];
$fname=$_POST['fname'];
$sname=$_POST['sname'];
$tel=$_POST['tel'];
if($domain==""){
    $error="<h4>Enter Domain </h4>";    
}elseif($fname == ""){
    $error="<h4>Enter Firstname </h4>"; 
}elseif($sname == "")
{
    $error="<h4 >Enter Surname</h4>";   
}elseif($tel=="")
{
    $error="<h4 >Enter telephono no</h4>";  
}
else {

$sql11=mysql_query("INSERT INTO domain VALUES('','$domain','$fname','$sname','$tel','$mobile','$email','$company','$address','$city','$country','$pcode','$tele',
'$fax','$qus','$ans')");
echo $sql;
$db->query($sql);

    }
    }
<div><?php echo $error; ?></div>
<form action="" method="post" name="classic_form" id="classic_form">
<div><h4>Personal details:</h4></div><div style="margin-left: 109px;">
          <div>Domain</div>
    <input type="text" name="domain" id="domain" value="" />
    <div>First name: </div>
    <input type="text" name="fname" id="fname" value="" />
    <div>Surname:</div>
     <input type="text" name="sname" id="sname" value="" />
     <div>Telephone:</div>
    <input type="text" name="tel" id="tel" value="" />
    <div>Mobile:</div>
    </form>

In my registration page, i used php validation. After the user submit the form if it shows validation errors it also resets all the fields. How can i resolve this problem? Without reset the fields i have to show the php validation errors. I also used in each input value. But it shows
“Notice: Undefined index: domain in D:\xampp\htdocs\deena\domainreg.php on line 82” . Please help me to resolve this problem

Answer 1

<input type="text" name="domain" id="domain" value="<?php echo isset($domain) ? $domain : ''; ?>" />