Random Logo PHP - Security Issue?

[mdb]

Hey guys,
I'm trying to insert a random logo code into my header template (using Zingas awesome PHP in Templates plugin) but when trying to save the template, MyBB gives me an error about the code being a potential security risk.

Here is the code i'm using:

Code:

1 2 3 4 5 6 7 8 9 10

<?php $Img1 = "{$theme['logo']}"; $Img2 = "/images/theme/logo2.png"; $num = rand (1,2); $Image = ${'Img'.$num}; echo "<a href=\""{$mybb->settings['bburl']}/portal.php"\"><img src=\"".$Image."\" title=\""{$mybb->settings['bbname']}"\" width=\""700"\" height=\""150"\" alt=\""{$mybb->settings['bbname']}"\" /</a>"; ? >

---

Does anyone know how I could fix that?

[ZiNgA BuRgA]

Try making the images into an array, eg

PHP Code:

$images=array(...); $image=$images[rand(0,count($images)-1)];

---

Maybe you'll need to assign the random number seperately.

[Sama34]

What about this:
http://mybbhacks.zingaburga.com/showthread.php?tid=776

PHP Code:

<img src="images/rand_images/{$theme['imgdir']}/logos/<?=mt_rand(1,9)?>.png" alt="{$mybb->settings['bbname']}" />

---