Posted by Starbuck on 05/04/06 06:49

Hi,

I would really appreciate some points of view about the best way of
validating mandatory fields and redirecting them back to the page that will
outline the text fields label (in red) to denote values that are missing
without losing the information that the user has already keyed in. There is
a lot out there about how to do this in java script, however, my client has
requested no java script is to be used. I have included a sample of my code
so far, and I would be grateful for any suggestions or changes that I should
be making to the functionality or any other suggestions/criticisms.

Thanks in advance...

<?php
// Check to verify that the form has been submitted
if ($_POST['Submit'] == "Submit")
{
// $errmsg is a global variable to be used for storing error
messages
$errmsg = "";
// check to see if the 'firstname' and 'lastname' string length is
at least one char
if ((strlen($_POST['firstname']) >= 1) &&
(strlen($_POST['lastname']) >= 1))
{
$firstname = trim($_POST['firstname']);
$lastname = trim($_POST['lastname']);
$errmsg= NULL;
}
else
{
// 'firstname' and 'lastname' was not submitted
$errmsg = '<SPAN class="Normal">You didn\'t fill out the required
fields. Please go back!</SPAN>';
}
// check to see if we have any errors
if (isset($errmsg))
{
// there was at least one error
echo $errmsg;
exit();
}
else
{
// No errors found, all data validated
// Connect MYSQL
MYSQL_QUERY("INSERT INTO table VALUES($firstname, $lastname");
echo "Your information has been posted.";
}
}
else
{
// Form wasn't posted, escape PHP and show the form
echo "Go back to main form because form wasn\'t posted.";
header("location: signup.php");
exit();
}
?>

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