Husna QA, you posted the link at the beginning of the line and without any space before that. The link would still work after the edit, even if you didn't use URL tags.
As already said, links become unclickable and no longer works after you edit the post, if there are 2 (or any other multiples of 2) spaces before them.
OK, I will try to include several links by adding space beforehand, as you mentioned,
Example without URL tag:
https://bitcointalk.org/index.php?board=6.0 https://bitcointalk.org/index.php?board=6.0https://bitcointalk.org/index.php?board=6.0 https://bitcointalk.org/index.php?board=6.0
I added the URL tag to the following example for each URL link.
https://bitcointalk.org/index.php?board=6.0 https://bitcointalk.org/index.php?board=191.0[url]https://bitcointalk.org/index.php?board=6.0[/url] [url]https://bitcointalk.org/index.php?board=191.0[/url]
Next, I will try to edit this post and see the results, whether by adding the URL tag, it is still unclickable or clickable.
As far as I know, the URL link that has been added the URL tag will turn into a hyperlink like this:
[url=https://bitcointalk.org/index.php?board=6.0]https://bitcointalk.org/index.php?board=6.0[/url]