passing value into URL thru email?

[eluser]anna16[/eluser]
Hi guys

Can you check this codes below,

Code:

<a href='&lt;?php echo site_url('>Click here.</a>

Actually what I'm trying to do here is to pass value into url thru email.
I tried the code above but no success.

Thanks in advanced.

[eluser]anna16[/eluser]
Sorry guys It seems i can't put the codes properly.
The forum system is deleting some of the partial codes.