Check a URL in smarty?

[mohsart]

I have code like this

{if $product->supplier_reference}
supplier_reference}.html#review" target="_blank">gobooks.nemir.org {l s='(May result in a error if book does not exist on that webpage)'}
{/if}

that show a link to a website that has revews on many (but not all) of the books that I sell.

So, I'd like to check if the page exists and only show the link if it does. Is this possible?

Edit: code broke of course, but I think my point is clear enough

/Mats

[rocky]

I think you can use code like the following in product.tpl:

{if $product->supplier_reference AND file_exists($product->supplier_reference|cat:'.html')}

You may need to add a path before the filename for it to work though.

[mohsart]

Sorry if I was unclear, it's a URL on a remote website that I want to check.
I tried some variations of entering the URL in file_exists() but I suspect that it only works for local files?

/Mats

[rocky]

You are right that file_exists only works for local files. I tried using fopen to check whether the file exists, but I can't get it to work with Smarty. I think you'll need to write code to check whether the file exists in product.php and then pass in the variable only if it exists.

[mohsart]

Ok, thanks

/Mats