Page URL & HttpUrl - Is it stored in the Backend?

[FrancisChung]

Hi there,

I was wondering if page->url and page->httpUrl are stored anywhere in the backend? 

I haven't been able to locate it so I'm beginning to think these are generated or calculated on the fly?

 

Thanks in advance

[teppo]

When you request $page->url, ProcessWire generates it on the fly, kind of: it's a combination of $config->urls->root and the path of current page. Root URL is defined when the system is started, and $page->path is constructed from the names of parent pages.

Similarly $page->httpUrl is a combination of protocol, hostname and $page->url