Htaccess, go through files until exists?

Question

I have this .htaccess file:

Options +FollowSymLinks
Options -Indexes

RewriteEngine On

RewriteEngine On

RewriteRule \.(png|jpg|gif|jpeg|bmp|ico|flv|mpeg|mp4|mp3|swf|exe|WAgame|wsc|eot|svg|ttf|woff|woff2|rar|wav)$ - []
RewriteRule ^ entryPoint3.php
RewriteRule ^ entryPoint2.php
RewriteRule ^ entryPoint.php

RewriteRule ^robots\.txt$ http://www.example.com [R,NE,L]
RewriteCond %{HTTP_HOST} ^example.com [NC]
RewriteRule ^(.*)$ http://www.%{HTTP_HOST} [L,R=301]

<Files .htaccess>
Order Allow,Deny
Deny from All
</Files>

If the entryPoint3.php exists, load it, otherwise load entryPoint2.php otherwise entryPoint.php. How to achieve this?

Answer 1

Have it this way:

Options +FollowSymLinks -Indexes
RewriteEngine On

RewriteRule \.(png|jpg|gif|jpeg|bmp|ico|flv|mpeg|mp4|mp3|swf|exe|WAgame|wsc|eot|svg|ttf|woff|woff2|rar|wav)$ - [L]

RewriteRule ^robots\.txt$ / [R,NC,L]

RewriteCond %{HTTP_HOST} ^example\.com$ [NC]
RewriteRule ^ http://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]

# if entryPoint3 exists then use it
RewriteCond %{DOCUMENT_ROOT}/entryPoint3.php -f
RewriteRule ^ entryPoint3.php [L]

# if entryPoint2 exists then use it
RewriteCond %{DOCUMENT_ROOT}/entryPoint2.php -f
RewriteRule ^ entryPoint2.php [L]

# if entryPoint exists then use it
RewriteCond %{DOCUMENT_ROOT}/entryPoint.php -f
RewriteRule ^ entryPoint.php [L]

<Files .htaccess>
Order Allow,Deny
Deny from All
</Files>