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  1. #1
    Regular Coder
    Join Date
    Oct 2008
    Thanked 0 Times in 0 Posts

    Reversing Rewrite Rules?

    When I rewrite a URL with mod_rewrite, I've always done something to this effect:

    RewriteRule ^show_news/([0-9]+)$ show_news.php?post_id=$1
    However, I found a script online to force the user to connect to the website via HTTPS, and it was something like:

    RewriteRule ^(.*)$ https://example.com/$1 [R,L]
    As you can see, the last bit is reversed compared to the first bit. What I mean is in the first code ends with the URL that's being rewritten. The last bit of code ends with the URL that's being created as the new URL. Is that because of the R flag that comes at the end?

  • #2
    Regular Coder
    Join Date
    Feb 2009
    Wheeling, IL
    Thanked 62 Times in 60 Posts
    I don't see it as being reversed. Essentially, it points any matching requests (The first string) to the specified https location (Second string)

    The [R] flag stands for redirect, so it forces the browser to load the new location (Including the change in the address bar). Quite often used by popular websites for adding "www." to the front of their domain. Like so:

    RewriteCond %{HTTP_HOST} ^example.com
    RewriteRule (.*) http://www.example.com$1 [R,L]
    You can also add the redirect type (301 or 302) to the flag like so:

    [R=301] [R=302]
    Hope that clears it up.
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