Options +FollowSymLinks
Options +Indexes

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)index\.html$ ../_dev/samples.php?script=$1 [QSA]

RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^(.*)$ ../_dev/samples.php?script=$1 [QSA]