Image verification code not working firefox

[vbbit]

I found this tutorial, but I don't know why it does not work with firefox. It works fine with IE, can anyone help please?


<?php
// initialize session
session_start();
// send header so telling the connectiont that we are about to send an image
header("Content-Type: image/png");
header('Cache-Control: no-cache');

// generate 5 digits random number
$rand = rand(10000, 99999);

// create the hash for the random numbers and put them in the session
$_SESSION['img_random_value'] = md5($rand);

// create the image
$image = imagecreate(60, 30);

// set the background color to white - this has to come first
$bgColor = imagecolorallocate($image, 255, 255, 255);

// set the text color to black
$txtColor = imagecolorallocate($image, 0, 0, 0);

// write the image
//imagefill($image, 0, 0, $bgColor);
imagestring($image, 5, 5, 8, $rand, $txtColor);

// output it to browser
imagepng($image, "verify.png");

// destroy the image to free up the server memory
imagedestroy($image);


?>

[kows]

uhh, well, I don't know how you're trying to view it, but if you're just opening the PHP file in the browser, then it won't work in any browser because you're saving the image to "verify.png" on the webserver.. and uhh, you can't really save a session into an image. I think what you might be looking to do is something like this instead:

random.php (script that displays the image)
<img src="random.image.php" />
<a href="./random.next.php">next ></a>

random.next.php (script that displays your session)
your session:
<blockquote>
<pre>
<?php
session_start();
print_r($_SESSION);
?>
</pre>
</blockquote>

random.image.php (script that makes the image -- just a small change from the script you originally posted)
<?php
// initialize session
session_start();

header("Content-Type: image/png");
header('Cache-Control: no-cache');

// generate 5 digits random number
$rand = rand(10000, 99999);

// create the hash for the random numbers and put them in the session
$_SESSION['img_random_value'] = md5($rand);

// create the image
$image = imagecreate(60, 30);

// set the background color to white - this has to come first
$bgColor = imagecolorallocate($image, 255, 255, 255);

// set the text color to black
$txtColor = imagecolorallocate($image, 0, 0, 0);

// write the image
//imagefill($image, 0, 0, $bgColor);
imagestring($image, 5, 5, 8, $rand, $txtColor);

// output it to browser
imagepng($image);

// destroy the image to free up the server memory
imagedestroy($image);
?>

it works fine for me.

[vbbit]

sorry I forgot to mention that sessions is for the user's credentials, there are more codes not just this. So it has nothing to do that with image code, and also I have codes that displays the image, which I did not include. My question is, it works with IE but not firefox. *clueless*

[kows]

but the image you're creating is just an image. images don't not work in certain browsers. that script runs fine in both firefox and internet explorer :/. it created the image both times on my web server. you're going to have to tell me HOW that script isn't working. is it not creating an image? not creating a session? not running at all? how are you calling the script? are you calling that script within an <img> tag? if so, then it won't work at all, in either browser. like I said in my post, you're saving the image instead of displaying it, so if you called that script within an <img> tag it wouldn't work. you'd have to set the <img> source to 'verify.png' instead; but even so, you have no real reason to save the image in the first place.

is this making any sense to you?

[vbbit]

Hm.. kows, this is what I have for my img src <img src="verify.png" width="60" height="30"> in the same file. Not sure if this answers your question.

[kows]

and how are you calling the script you pasted above? just using one of the include functions?

[vbbit]

no the script that i pasted above and the image src are in one page. I didn't not seperate them. Is that the cause?