I have the following two script files (i.e., formtest.html and calc.php). When I do the server side validation on calc.php, how do I pass the error message (i.e. $err_msg back to the formtest.html?
Teşekkür ederim
<html>
<head>
<title>Form Test</title>
</head>
<body>
<form method="post" action="calc.php">
<pre>
Loan Amount <input type="text" name="principle" />
<input type="submit" />
</pre>
</form>
</body>
</html>
.
// calc.php
$err_msg = '';
if ( !empty(isset($_POST['principle'])) )
{
// process the form and save to DB
} else {
$err_msg .= 'Loan Amount is empty!';
}
?>