why do i get error on this ?

codefreek · 10-21-2008, 10:17 PM

PHP Code:


			
<?php session_start(); 
//imagecreatefrompng :: create a new image 
//from file or URL
$img = imagecreatefrompng('black.png'); 
//displaying the random text on the captcha 
$numero = rand(100, 999); 
$_SESSION['check'] = $numero; 
//The function imagecolorallocate creates a 
//color using RGB (red,green,blue) format.
$white = imagecolorallocate($img, 255, 255, 255); 
imagestring($img, 10, 8, 3, $numero, $white);
header ("Content-type: image/png"); 
imagepng($img); 
?>

and then in the reg page
you do this
session_start();

PHP Code:


			
if(($_POST['check']) == $_SESSION['check']) { 
echo 'Input OK';
}else{ 
echo 'Input Wrong';        
}

but i get..
echo 'Input Wrong';

CoryMathews · 10-21-2008, 10:31 PM

on $_SESSION['check'] = ($numero);

whats with the () around $numero?
Not sure if thats an error but I could see it as one. What is the actualy error statement.

codefreek · 10-21-2008, 10:34 PM

the form

Code:

<form method="POST" action="register.php"> 
<img src="captchas.php"> <br>
<input type="text" size="10" name="check">  
<input type="submit" name="submit" value="submit"> 
</form>

codefreek · 10-21-2008, 10:36 PM

it wont, accept it, if it did it would not turn in to echo 'Input Wrong';..

codefreek · 10-21-2008, 11:48 PM

is there anyone that knows a better way to create.
a CAPTCHA with PHP ?

awuehr · 10-22-2008, 07:07 AM

Just try the PEAR package Text_CAPTCHA.

Greetings,

Alex

Tanax · 10-22-2008, 07:21 AM

Hehe persistant are we?

codefreek · 10-22-2008, 05:04 PM

"persistent"

Wildhoney · 10-22-2008, 07:30 PM

Don't make me get all particular with spellings, syntaxes, punctuation, et cetera...!

Salathe · 10-22-2008, 07:37 PM

Don't make Wildhoney get all particular with spelling, syntax, punctuation, et cetera!

Wildhoney · 10-22-2008, 09:01 PM

Touché! Touché!

codefreek · 10-23-2008, 12:00 AM

i made a test / for bot users /

i did like this, simple.

$bottest = $_POST['leave_blank'];

if(strlen($bottest)>1)
{

echo "Nice try!";

}

"<div style='display:none;visibility:hidden;'>",
"<input type='text' name='leave_blank' id='leave_blank'>",
"</div>",

Don't know if that works out to be a good thing for this..
what do you think ?

Wildhoney · 10-23-2008, 12:44 AM

Yes, that's one of the simplest ways to do it. Although being simple, it is quite easy to identify. Nonetheless, I would say it'll prevent a good portion of them.

codefreek · 10-23-2008, 12:49 AM

so i did something good :P
yeah awesome xD