Can I nest Replace() AMPscript function?

Question

I am trying to nest an AMPscript function - Replace(). This should take a value and replace it based on what you designate in the function. However, I have two values I need to replace. The "@" symbol in an email address should be replaced by %2 and the "." symbol in the email should be replaced by %4. This is for use in a URL string where the email address is appendeded to be passed and consumed. Currently I have this:

Set @email = [Email Address]

%%=Replace(Replace(@email,"@","%4"),".","%2")=%%

But it's only replacing the @ and not the ..

Any ideas?

Here is the AMPscript variable block:

<!---ampscript
%%[
/* 101 */ Var @memberfirstname, @memberlastname, @refereefirstname, @refereelastname, @promocode, @rewardpreference, @amountpaid, @email
Set @memberfirstname = member_first_name
Set @memberlastname = member_last_name
Set @refereefirstname= referee_first_name
Set @refereelastname = referee_last_name
Set @promocode = promo_code
Set @rewardpreference = reward_preference
Set @amountpaid = amount_paid
Set @email = [Email Address]


/* 101 */
]%%
/-->

Due to client confidentiality I cannot post the entire URL string. Here is what it looks like without the actual URL:

<a href="https://url.example.com?c=promocode=%%=v(@promocode)=%%&email=%%=Replace(Replace(@email,"@","%40"),".","%2E"=%%"><img border="0" src="http://image.s4.exct.net/lib/fe9015737461027473/m/1/btn-referee-reminder-apply.gif" width="115" height="32" alt="" longdesc=""></a>

Answer 1

Your issue lies with the function itself -

Replace this:

%%=Replace(Replace(@email,"@","%40"),".","%2E"=%%

With this:

%%=Replace(Replace(@email,'@','%40'),'.','%2E')=%%

I just dropped this in my account and tested - the resulting link was:

https://url.example.com/?c=promocode=123&email=test%40test%2Ecom