: Redirect to same site but add things into the URL I have a PHP file, index.php, that is set as the index file for my site. If someone wants to pull up a value for a, as an example, then

@Phylliss660

I'm not sure if this is possible with mod_alias, but it certainly can be done with mod_rewrite. As walker suggests, it's probably more user-friendly to do this as an internal rewrite, so that users won't actually see the URL change:

# Include these at the top of your root .htaccess file:
Options +FollowSymLinks
RewriteEngine On
RewriteBase /

# Map any requests for non-existent files or dirs to index.php:
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)$ /index.php?value= [QSA]


You may want to replace the .+ bit with a regular expression that more closely matches your set of allowed values; the regexp I used just matches any non-empty string. For example, if your values are all lowercase alphanumeric, you may use [a-z0-9]+ instead.



An alternative solution would be to use FallbackResource from mod_dir, like this:

FallbackResource /index.php


However, you'd then have to modify your index.php script to extract the value from the appropriate $_SERVER variables (which I'd assume to be the same as these ones, although the documentation doesn't seem to actually say so). In older Apache versions, the same effect could be achieved by setting a custom 404 error handler like this:

ErrorDocument 404 /index.php


but then you'd also need to remember to explicitly send a 200 OK status using header() to override the default 404 status code. (Otherwise e.g. search engines wouldn't index your pages, since they'd see the 404 status and assume the content was just an error message.)

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@Si4351233

You better use Rewrite instead of Redirect. This way the user is not redirected but presented the right data. Do it this way...


RewriteRule ^/([a-zA-Z0-9._])$ /?value= [L,NC]

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@Welton855

I set a RedirectMatch with the pattern /(.*) to second.example.com/?a=. It can't be redirected back to example.com because that will result in an infinite loop. I don't want to do the RedirectMatch within a specific directory (example.com/a/something) because I want it to be as easy as possible.

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