.htaccess - htaccess not redirecting properly with rewrite rules -

i'm trying create simple htaccess file following:

1. redirects http://domain.com http://www.domain.com
2. allows '.php' extension dropped file names
3. allows http://www.domain.com/page/var , http://www.domain.com/page/var/ seen http://www.domain.com/page?u=var
4. rewrites http://www.domain.com/page?u=var http://www.domain.com/page/var

this have far, doesn't seem working:

    indexignore .htaccess     directoryindex index.php      options -indexes      rewriteengine on      rewritecond %{request_filename} !-d     rewritecond %{request_filename} !-f      rewritecond %{http_host} !^www\.     rewriterule (.*) http://www.%{http_host}%{request_uri} [r=301,l]      rewriterule ^([^/.]+)/?$ $1.php      rewriterule page1/(.*)/$ /page1?u=$1     rewriterule page1/(.*)$ /page1?u=$1     rewriterule page2/(.*)/$ /page2?t=$1     rewriterule page2/(.*)$ /page2?t=$1      errordocument 400 http://www.domain.com/error?e=400     errordocument 401 http://www.domain.com/error?e=401     errordocument 403 http://www.domain.com/error?e=403     errordocument 404 http://www.domain.com/error?e=404     errordocument 500 http://www.domain.com/error?e=500      addoutputfilterbytype deflate text/plain     addoutputfilterbytype deflate text/html     addoutputfilterbytype deflate text/xml     addoutputfilterbytype deflate text/css     addoutputfilterbytype deflate application/xml     addoutputfilterbytype deflate application/xhtml+xml     addoutputfilterbytype deflate application/rss+xml     addoutputfilterbytype deflate application/javascript     addoutputfilterbytype deflate application/x-javascript 

any appreciated, thanks.

try :

    indexignore .htaccess     directoryindex index.php      options -indexes      rewriteengine on     rewritecond %{http_host} !^www\.     rewriterule (.*) http://www.%{http_host}%{request_uri} [ne,r=301,l]   #remove .php   rewritecond %{request_filename} !-d  rewritecond %{request_filename}\.php -f  rewriterule ^([^.]+)/?$ /$1.php [l,nc]    rewritecond %{the_request} /page\?u=([^\s]+)     rewriterule ^ /page/%1? [ne,r,l] rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^([^/]+)/([^/]+)/?$ /page?u=$2 [l,nc]