add a capcha on to my contact form

hi

what i want to do it to add a capcha on to my contact form the contact form submittes dater to a dater base and sends an email to me.


<?php require_once('../Connections/mywigan.php'); ?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
$theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;

$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

switch ($theType) {
case "text":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "long":
case "int":
$theValue = ($theValue != "") ? intval($theValue) : "NULL";
break;
case "double":
$theValue = ($theValue != "") ? "'" . doubleval($theValue) . "'" : "NULL";
break;
case "date":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "defined":
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
break;
}
return $theValue;
}
}

$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}

if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
$insertSQL = sprintf("INSERT INTO email_messages (id, email, subject, message) VALUES (%s, %s, %s, %s)",
GetSQLValueString($_POST['id'], "int"),
GetSQLValueString($_POST['email'], "text"),
GetSQLValueString($_POST['subject'], "text"),
GetSQLValueString($_POST['message'], "text"));

mysql_select_db($database_mywigan, $mywigan);
$Result1 = mysql_query($insertSQL, $mywigan) or die(mysql_error());

$insertGoTo = "../index.php";
if (isset($_SERVER['QUERY_STRING'])) {
$insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?";
$insertGoTo .= $_SERVER['QUERY_STRING'];
}
header(sprintf("Location: %s", $insertGoTo));
}

?>
<?php

$to = 'someone@somewhere.com';
$subject = $_POST['subject'];
$message = $_POST['message'];
$headers = 'From: emailadress@email.com' . "\r\n" .
'Reply-To: webmaster@example.com' . "\r\n" .
'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);
?>
<form method="post" name="form1" action="<?php echo $editFormAction; ?>">
<table align="center">
<tr valign="baseline">
<td nowrap align="right">Email:</td>
<td><input type="text" name="email" value="" size="32"></td>
</tr>
<tr valign="baseline">
<td nowrap align="right">Subject:</td>
<td><input type="text" name="subject" value="" size="32"></td>
</tr>
<tr valign="baseline">
<td nowrap align="right" valign="top">Message:</td>
<td><textarea name="message" cols="50" rows="5"></textarea>
</td>
</tr>
<tr valign="baseline">
<td nowrap align="right">&nbsp;</td>
<td><input type="submit" value="submit"></td>
</tr>
</table>
<input type="hidden" name="id" value="">
<input type="hidden" name="MM_insert" value="form1">
</form>

<p>&nbsp;</p>




how would i add a capcha i have been tring to add one for a bit but keep failing.

thanks again :thumbsup:

How complex of a captcha do you need?

I'm not sure if you went here (http://recaptcha.net/whyrecaptcha.html) yet but they have a very easy implementation guide/system for php. Read the documentation and if you have any questions, post them.

uuuurrrr

i want it a simple as possiable:) but still reasonably secure

thanks agin:thumbsup:

http://www.phpcaptcha.org/

http://www.phpcaptcha.org/

yes i have been here but when i try and to put it in my form i get error i will try agin to put it in my form and post back the results

thanks ever one

recaptcha is by far the best in my opinion

If you are worried about accessibility, textcaptcha (http://textcaptcha.com) is a good alternative and indeed interesting!

thanks every one i have got
the
http://www.phpcaptcha.org
one to work it great

thanks again sorry for the late repy:thumbsup: