HTML/PHP code for unsubscribe link?

Let's say we're in subscribe_single_fixed.php, and I would like to create a regular link (instead of the default submit button) to subscribe or unsubscribe someone from a list. This should be simple. I'm a PHP novice, but I have tried everything that looks anything like this:

Code:
<a href="http://...lm/lm.php?cmd=unsubscribe&list=[name of list]&email=<?php echo $email ?>&pwd=[password]">Unsubscribe</a>

How far off am I? Is it really a lot more difficult than something like that? Also, if you can pull the $email into the string, then you should also be able to include $admin_password as well, right? That way it's a lot more secure than just having your password out there for everyone to see. Please help.
 
PHP code is ran by the server before seeing the page to you. As a result your code is wrong since the server has no way to know the value of $email. I believe you have to omit that parameter since it is already passed by the form.
 
Ahh, I see. So shouldn't there be a way just to echo the whole string by using html in the PHP so that it is picked up by the server before the page loads? I know I've seen PHP generate html tags before in WordPress... Actually, I've seen PHP generate html in MLM! Shouldn't I be able to do that here? If so, what would the correct syntax be?
 
It is what the subscribe_single_fixed.php page does actually. Look at the beginning, there is a some PHP code. Since the form calls itself with all the data that script catches that data and sends it to to the lm.php script.
 
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