Simple Form Problem: Cant press Enter in form without getting error message: Invalid Input

Question

The problem is very simple,
I have several forms on my site such as the 'quick enquiry'
form on the home page about half way down.
http://www.party-invitation.co.uk/index.htm
The user enters name- Works Fine
user enters email address- Works Fine
User enters a question- This is were the problem occurs when
the users presses the Enter key. This seems to bring up a message
that says Invalid Input.
Does anyone know how i can allow people to use the Enter key
in my forms to skip lines without causing this error message?
Any help would be appreciated.
Feel free to use the form to test it out.
Thanks.
Here is my php code for the form.
<?
function checkOK($field)
if (eregi("\r",$field) || eregi("\n",$field)){
die("Invalid Input!");
$Name=$_POST['Name'];
checkOK($Name);
$Email=$_POST['Email'];
checkOK($Email);
$Question=$_POST['Question'];
checkOK($Question);
$to="[email protected]";
$message="
A Quick Enquiry has been submitted from
www.Party-Invitation.co.uk
Here are the details:
Name: $Name
Email: $Email
Question: $Question
if(mail($to,"Quick Enquiry: $Email $Name" ,$message,"From:
$email\n")) {
echo "";
} else {
echo; "There was a problem sending the mail. Please check
that you filled in the form correctly.";
?>

Answer 1

.oO(stuckinthesystem)
> Here is my php code for the form.
> <?
This should be <?php for portability reasons. Short open
tags are an
optional feature and can be disabled.
> function checkOK($field)
> {
> if (eregi("\r",$field) || eregi("\n",$field)){
The old ereg_* functions should not be used anymore. Better
would be
something like
if (preg_match("/[\n\r]/", $field)) {...}
> $Name=$_POST['Name'];
> checkOK($Name);
> $Email=$_POST['Email'];
> checkOK($Email);
> $Question=$_POST['Question'];
> checkOK($Question);
The last check causes the error if the user enters multiple
lines in the
text area. You can remove that check, because line breaks in
the email
body are safe.
> if(mail($to,"Quick Enquiry: $Email $Name"
,$message,"From: $email\n")) {
> echo "";
There's a typo in the last parameter. Variable names in PHP
are
case-sensitive, so $Email != $email. You should set
error_reporting to
E_ALL in your php.ini, so PHP will let you know about such
errors.
Micha