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Web Tool Bag | ZDR Scripts- development and maintenance | Captcha ZDR - Questions and answers
Author Session and Validation
Adrianna
Member

Posts: 3
Location:
Joined: 19.09.11
Posted on 20-09-2011 17:24
Hi Folks..
There I have 3 Forms.. 1.php, 2.php, 3.php
Users, get Captcha validation first... if that is "ok", the get redirect to a "choice.php" witch hold 3 links to 1, 2 or 3 (php's).

Question:

Need to pass session to other pages, so.... In order to validate users access to "choice.php, 1.php, 2.php, 3.php"... I need to place a php header, a php script that call auth.php

Here is auth php :

<?php
//Start session
session_start();

//Check whether the session variable "captcha" is present or not
if(!isset($_SESSION['captcha']) || (trim($_SESSION['captcha']) == '')) {
//This works as else statement
header("location: custom_error_page.php");
exit();
}

?>




But no luck at all.. anyone..?
Thanks in advance... lo
Author RE: Session and Validation
Adrianna
Member

Posts: 3
Location:
Joined: 19.09.11
Posted on 21-09-2011 16:59
Here is better example... I need auth captcha session to other pages:

index.html


<html>
<body>
<a href="http://my_site.com/example.php">New user ? ..sign up!</a>
</body>
</html>





example.php


<?php
/* ..... Captcha ZDR ..... */
session_start();
?>
<html>
<body>
....
<form name="form1" method="post" action="example_submited.php">
....
</body>
</html>






example_submited.php


<?php
/* ..... Captcha ZDR ..... */
session_start();
?>
<html>
<body>
<?php
// $_SESSION['captcha'] contain true value from captcha image, you can make COMPARISON with string entered from user. EXAMPLE:

include("class/captchaZDR.php");
$capt = new captchaZDR;

if($capt->check_result())
{
include('choice.php');
}
else
{
readfile('error.php');
}
?>
</body>
</html>






choice.php


<?php
require_once('auth.php');
?>
<html>
<body>
<a href="http://my_site.com/geo_class.php">Sign up for Geo Class!</a>
<a href="http://my_site.com/math_class.php">Sign up for Math Class!</a>
<a href="http://my_site.com/english_class.php">Sign up Englis Geo Class!</a>
</body>
</html>






auth.php


<?php
//Start session
session_start();

//Check whether the session variable "captcha" is present or not
if(!isset($_SESSION['captcha']) || (trim($_SESSION['captcha']) == '')) {
//This works as else statement
header("location: custom_error_page.php");
exit();
}

?>





For geo_class.php, math_class.php and english_class.php.... I do have header like choice.php with require_once(auth.php) statement.

Question... what is wrong there?.. I cant pass session.. how do I fixed?
Author RE: Session and Validation
Adrianna
Member

Posts: 3
Location:
Joined: 19.09.11
Posted on 23-09-2011 05:30
*BUMP*
Author RE: Session and Validation
webtoolz
Member

Posts: 2
Location:
Joined: 05.01.10
Posted on 26-09-2011 11:17
Hello Adrianna,
I think you should change the body of function check_result and change the validation. If the following way. Change of function check_result in file captchaZDR.php start on line 214:

From this:


function check_result(){

if( !isset($_SESSION['captcha']) || $_SESSION['captcha']!=$_REQUEST['capt'] || $_SESSION['captcha']=='BADCODE')

{

$_SESSION['captcha']='BADCODE';

return false;

}

else

{

unset($_SESSION['captcha']);

return true;

}

}





To this:


function check_result(){
if( !isset($_SESSION['captcha']) || $_SESSION['captcha']!=$_REQUEST['capt'] || $_SESSION['captcha']=='BADCODE')
{
$_SESSION['captcha']='BADCODE';
return false;
}
else
{
unset($_SESSION['captcha']);
$_SESSION['captchaValid'] = 'YES';

return true;
}
}





Then use for validation:

auth.php

<?php
//Start session
session_start();

if(!isset($_SESSION['captchaValid']) || ($_SESSION['captchaValid'] != 'YES')) {
header("location: custom_error_page.php");
exit();
}
?>






I hope this will help you.

Best Regards
webtoolz
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Vince
03/10/2011 21:17
Hi, How to remove Register from Login screen? I don't want them to register and have full access! if you leave register then they should not have any rights until the admin assigns them

webtoolz
26/09/2011 11:28
Please describe your problem with more details. Thank you.

bimmer98
22/11/2010 20:31
Help. There was a problem with the request; error regarding feedbackzdr form program

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