Simple Form Validation

[help_needed]

Hi,

Can someone please help me with the following?

I have a simple validation, where it makes sure ALL the fields are enterd.

So, if the form is partially filled, and sumitted, an error is displayed informing them to fill out everything.

But, when they click "back" to fill in the rest of the info, the fields that WERE ALREADY FILLED in, become blank.

Can someone please help me?

Thanks,

[OhLordy]

Right you could do it with a link they click to go back to the previous page.

Page1 is the form

Page2 is the confirmation page

have somethin like

<?
$err="";
if(empty($_POST['value1']))
{
  $err.="Value one was not filled in <br />\n";
}

if(empty($_POST['value2']))
{
  $err="value two was not filled in <br />\n";
}
//etc ....
if($err!="")
{
  echo($err);
  $link="page1.php?";
  $count=0;
  foreach($_POST as $key => $value)
  {
    if($count!=0) $link.="&";
    $link.=$key."=".$value;
  }
  echo("Click <a href=\"".$link."\">HERE</a> to return to the form");
}
?>

HTH
Rob

[Mordecai]

foreach ($_POST as $key=>$value) {
  if (empty($_POST[$key])) {
    echo($key." is empty!");
    $empty ++;
  }
}
if ($empty !=0) {
  echo("Sorry, but you had ".$empty." empty fields.");
}
else {
  //everything's filled in
}

[RyanHuang]

<script language="javascript">

function validateform()
{
if (document.yourformname.fieldname.value=="")
{
alert("Please fill the field!");
return false;
}
...........
}

</script>

<form name=loginform action="login.php" onSubmit="return validate form" method="POST">
.................

</form>

note :until the require field is filled the action "login.php" will be invoked

[help_needed]

Thanks a lot!!!