php - How to do a basic URL rewrite with mod_rewrite -

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i don't understand why when use this:

#rewriterule ^/?r/(.*)$ /index.php?n=$1 [l]

to rewrite mysite.com/r/somewhat mysite.com/index.php?r=somewhat site work.

but if use this:

#rewriterule ^/?(.*)$ /index.php?name=$1 [l]

to rewrite mysite.com/somewhat mysite.com/index.php?r=somewhat, site stop working.

i don't understand why. can me?

how can rewrite mysite.com/somewhat mysite.com/index.php?r=somewhat?

your 2nd rule cause infinite looping since target uri /index.php?r=somewhat matches .*. causes 500 internal server error.

to fix need avoid rewriting files , directories using rewritecond this:

rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^/?(.+)$ /index.php?r=$1 [l,qsa]

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