current_url() vs. “ ” in an href

Question

I want to have links that allow for page refreshing and setting href="" seems reasonable.

I'm using Codeigniter (PHP framework) which has a function current_url() so I could also write href="<?=current_url()?>" but I won't do that unless there's some reason href="" is bad.

Am I missing anything on the usefulness of href="<?=current_url()?>" ?

note: I imagine most frameworks/languages have something similar to current_url() so my question is more general about the downsides of writing href="" .

Answer 1

The only difference is when you have a base tag in your head. Otherwise they should be identical.

With a <base href='www.test.com'> in your head then href='' will resolve to relative to the base.

Answer 2

I read that some browsers had bugs with href="" in the past. Even though new browsers shouldn't have a problem with href=""; I'd go with href="<?=current_url()?>" to avoid running into bugs with older browsers.

Answer 3

I can't imagine any downside, really. It's what I'd do.

If you're curious about other options, you could also use the Javascript method window.location.reload(); for the same effect.

Answer 4

考虑到SEO，链接到您自己的页面可能会有好处，但我不知道有什么好处/缺点。