Apache mod_rewrite rules problems

domain.com/index/ to domain.com/index.php

domain.com/index/hello to domain.com/index.php/hello

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The site is use path_info,and the default rule not works:

RewriteRule ^([^/]+)/(.*)$      $1.php/$2   [L]

I change to: RewriteRule ^([^/.]+)((/[^/]+)*)/?$ $1.php$2 [L]

That was strange

domain.com/index/ to domain.com/index.php works fine

domain.com/index/hello to domain.com/index.php/hello not work

and it says No input file specified.

Php is run in fast cgi mode in apache

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I believe it should be:

RewriteRule ^([^/]+)/(.*)?$      $1.php/$2   [L]

So the 2nd group is optional.

Also, I would advise you not to use variable passed in the url to match files, it could lead to security issues.

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Clearly your regex need escape for /. Try this instead:

RewriteRule ^([^\/]+)\/(.*)$      $1.php/$2   [L]

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I change to: RewriteRule ^([^/.]+)((/[^/]+)*)/?$ $1.php$2 [L] 

That was strange

domain.com/index/ to domain.com/index.php works fine

domain.com/index/hello to domain.com/index.php/hello not work

and it says No input file specified.

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You need to exclude matches that end with .php:

RewriteCond $1 !.+\.php$
RewriteRule ^([^/]+)/(.*)$      $1.php/$2   [L]

Otherwise /index.php/hello would also be rewritten to /index.php.php/hello and that would be rewritten to /index.php.php.php/hello and that …