Question

I want the following:

1. www.bla-bla.com/ –> www.bla-bla.com/php/index.php
2. www.bla-bla.com/php/index.php –> www.bla-bla.com/php/error.php

I have tried the following but doesn’t work

RewriteEngine on
RewriteRule ^/?$  /php/index.php [S=1]
RewriteCond %{REQUEST_URI} =/php/index\.php
RewriteRule (.*)? /php/error.php [R=404]

What can I do to deny access from real path?

---

URL=http://localhost
 (3) [perdir C:/xampp/htdocs/] strip per-dir prefix: C:/xampp/htdocs/ -> 
 (3) [perdir C:/xampp/htdocs/] applying pattern '/php/index\.php' to uri ''
 (3) [perdir C:/xampp/htdocs/] strip per-dir prefix: C:/xampp/htdocs/ -> 
 (3) [perdir C:/xampp/htdocs/] applying pattern '^(/?)$' to uri ''
 (2) [perdir C:/xampp/htdocs/] rewrite '' -> '/php/index.php'
 (1) [perdir C:/xampp/htdocs/] internal redirect with /php/index.php [INTERNAL REDIRECT]
 (3) [perdir C:/xampp/htdocs/] strip per-dir prefix: C:/xampp/htdocs/php/index.php -> php/index.php
 (3) [perdir C:/xampp/htdocs/] applying pattern '/php/index\.php' to uri 'php/index.php'
 (3) [perdir C:/xampp/htdocs/] strip per-dir prefix: C:/xampp/htdocs/php/index.php -> php/index.php
 (3) [perdir C:/xampp/htdocs/] applying pattern '^(/?)$' to uri 'php/index.php'
 (1) [perdir C:/xampp/htdocs/] pass through C:/xampp/htdocs/php/index.php
URL=http://localhost/php/index.php
 (3) [perdir C:/xampp/htdocs/] strip per-dir prefix: C:/xampp/htdocs/php/index.php -> php/index.php
 (3) [perdir C:/xampp/htdocs/] applying pattern '/php/index\.php' to uri 'php/index.php'
 (3) [perdir C:/xampp/htdocs/] strip per-dir prefix: C:/xampp/htdocs/php/index.php -> php/index.php
 (3) [perdir C:/xampp/htdocs/] applying pattern '^(/?)$' to uri 'php/index.php'
 (1) [perdir C:/xampp/htdocs/] pass through C:/xampp/htdocs/php/index.php

Options +FollowSymlinks
RewriteEngine on

RewriteRule /php/index\.php /php/error.php [L]
RewriteRule ^(/?)$ /php/index.php [QSA,L]

Wtf is going on here?

Answer 1

Try this:

# If the actual request is for /php/index.php, rewrite to error.php
RewriteCond %{THE_REQUEST} ^[A-Z]+\ /php/index.php  [NC]
RewriteRule ^php/index\.php /php/error.php  [L]

# Otherwise check if root request and rewrite to /php/index.php
RewriteRule ^$ /php/index.php  [L]

---

EDIT: responding to comments:

Without the[L] flag, it will try to apply the next rule. mod_rewrite will always send it back through the rewrite engine after a URI has been rewritten. It will continue to do so until the URI went through the engine unchanged. The first condition checks that the actual request is for /php/index.php, so that the rewritten URI won’t match. Example:

1. Someone requests http://bla-bla.com/
2. first rule doesn’t match because the HTTP Request is GET / HTTP/1.1
3. second rule rewrites to /php/index.php
4. mod_rewrite sends the rewritten URI back through the rewrite engine
5. first rule doesn’t match because eventhough the URI is now “/php/index.php”, the original HTTP Request is still the same: GET / HTTP/1.1
6. second rule doesn’t match because the URI is now “/php/index.php” and not “/”.
7. rewrite engine stops because base URI is unchanged.

Example 2:

1. Someone requests http://bla-bla.com/php/index.php
2. first rule matches because the HTTP Request is GET /php/index.php HTTP/1.1
3. URI is rewritten to /php/error.php
4. second rule doesn’t match
5. URI is sent back through the rewrite engine
6. first rule’s condition matches because the HTTP Request is still the same
7. however, the URI isn’t ‘/php/index.php’ now so the actual rule doesn’t match
8. second rule still doesn’t match
9. reiwrte engine stops because base URI is unchanged.