[SOLVED] How to echo canonical link in product.tpl?

Hello all, I'm new in this forum. Here is my question:

I'm using Opencart 1.5.4.

How to echo canonical link in the product.tpl? I need that for some reason (twitter counturl).
I can see in the header.tpl that canonical link is easily echoed using this: But when I tried to echo $link['href'] in the product.tpl, it echoes nothing.
I think this must be something related with controller file.

But I just want simple solution. Since the canonical link has been declared in the header, can we just "copy paste" that form header.tpl to product.tpl?
Example, in header.tpl we use $copy_canonical = $link['href']; and then in product.tpl just echo $copy_canonical;
I think that will not be as simple as that, right?

What is the simplest solution?
Thank you.

Hello, can anybody please help me...?

Nobody? Wow, I can believe it. It must be a simple question for a lot of opencart Masters here.
Since I don't know how a variable is passed between file in MVC like opencart, i don't know the procedure.
But the logic itself should be easy, right?
Anybody, pleaseee...

find
and below add
then go to product.tpl and echo $cannoical_url

Yes, it is right!

Hi MarketInSG, thanks a lot for your answer. Finally...
In your reply above, you asked me to find a line of code and then add another line below it.
But in which file? You don't mention it

What I'm trying now is just directly echo your code in the product.tpl like this and it works!!

Is it a right procedure to echo it directly in product.tpl? Not in some controller file?
It works already as what I want (and I'm so happy), but I'm afraid if there is side effect when we echo it directly in the product.tpl.

Thankkks!!

there's no side effect to do it in product.tpl. You can do that if you're lazy
Else, you can follow my instructions above and add into controller/product.php

Done! I implemented it via vqmod and it works perfectly.
Many thanks MarketInSG!

By the way, how to mark this topic as SOLVED?
How to edit the topic title?
Thanks.

edit the first post you made and add a solved if i'm not wrong. Can't really remember