.htaccess, cannot get first part of a URL in rewrite condition - .htaccess

Question

I am attempting to get the following results with an .htaccess file.
URL: Behavior(rewrite to):
example.com/x/ view-test.php?page=x
example.com/x/y view-test.php?page=y&parent=x
example.com/x/y/z view-test.php?page=z&parent=y&grandparent=z
I have the following .htaccess rules, which also include some folders which needs to ignore this scheme:
RewriteCond %{REQUEST_URI}!^/(admin|images|scripts|css|fonts|view-test\.php)/ [NC]
RewriteRule ([^/]*)/([^/]*)/([^/]+)/?$ /view-test.php?grandparent=$1&parent=$2&page=$3 [L]
RewriteCond %{REQUEST_URI}!^/(admin|images|scripts|css|fonts|view-test\.php)/ [NC]
RewriteRule ([^/]*)/([^/]+)/?$ /view-test.php?&parent=$1&page=$2 [L]
RewriteCond %{REQUEST_URI}!^/(admin|images|scripts|css|fonts|view-test\.php)/ [NC]
#RewriteRule ([^/]+)$ /view-test.php?page=$1 [L]
however, whenever I uncomment the last two lines I get an internal server error. the parent/page and grandparent/parent/page structures work fine. How can I re-write this last rule (and the preceding rules if nessecary) to achieve the desired result for the first pattern (just a page)?

Answer 1

# remove slash at the end to prevent redirect loop
RewriteCond %{REQUEST_URI} ^/(OIE|admin|images|scripts|css|fonts|view-test\.php) [NC]
RewriteRule ^ - [L]
RewriteRule ([^/]*)/([^/]*)/([^/]+)/?$ /OIE/view-test.php?grandparent=$1&parent=$2&page=$3 [L]
RewriteCond %{REQUEST_URI}!^/(admin|images|scripts|css|fonts|view-test\.php)/ [NC]
RewriteRule ([^/]*)/([^/]+)/?$ /OIE/view-test.php?&parent=$1&page=$2 [L]
RewriteCond %{REQUEST_URI}!^/(admin|images|scripts|css|fonts|view-test\.php)/ [NC]
RewriteRule ([^/]+)/?$ /OIE/view-test.php?page=$1 [L]

Answer 2

Use this code instead:
RewriteCond %{REQUEST_URI} ^/(admin|images|scripts|css|fonts|view-test\.php)/ [NC]
RewriteRule ^ - [L,S=3]
RewriteRule ^([^/]+)/([^/]+)/([^/]+)/?$ view-test.php?grandparent=$1&parent=$2&page=$3 [L,QSA]
RewriteRule ^([^/]+)/([^/]+)/?$ view-test.php?&parent=$1&page=$2 [L,QSA]
RewriteRule ^([^/]+)/?$ view-test.php?page=$1 [L,QSA]
Problem was that you were missing trailing slash / in in your last RewriteRule condition.

Answer 3

Try this :
RewriteEngine On
RewriteBase /
RewriteRule ^([a-zA-Z0-9_-]+)$ view-test.php?page=$1
RewriteEngine On
RewriteBase /
RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)$ view-test.php?page=$1&parent=$2
RewriteEngine On
RewriteBase /
RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)$ view-test.php?page=$1&parent=$2&grandparent=$3