Create URL from page ID

Hi community,

I'm new here, unfortunately can only write on English.

I was not able to get/create URL to page using page ID.

I've created a pageTree field in DCA, and now in custom template have just ID in variable. But I want to create link to that page. Is there any hint or code snippet on how to create link.

Thank you in advance.

That's easy:

PHP-Code:

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$url = \Contao\PageModel::findById($id)->getFrontendUrl(); // use ->getAbsoluteUrl(); for an URL including scheme and host 


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Thank you!
For now I used just text field and c/p the whole page (external )URL