rewrite url after remove extension - php

Question

I need your help.
I have a problem to rewrite a dynamic url after extension removed, I've rewritten this url but not works:
.htaccess like this:
<IfModule mod_rewrite.c>
Options -Multiviews
Options +FollowSymLinks
RewriteEngine On
RewriteBase /
#add www 1
RewriteCond %{HTTP_HOST} !^www\.mondomain\.com$ [NC]
RewriteRule ^(.*)$ http://www.mondoamin.com/$1 [R=301,L]
#remove .php extension 2
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [R=301,L]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php [L]
# Removes index.php from ExpressionEngine URLs 3
RewriteCond %{THE_REQUEST} ^GET.*index\.php [NC]
RewriteCond %{REQUEST_URI} !/system/.* [NC]
RewriteRule (.*?)index\.php/*(.*) /$1$2 [R=301,NE,L]
# Directs all EE web requests through the site index file
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule ^(.*)$ /index.php/$1 [L]
#rewrite url 4
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /article\.php\?id_ article =([^&\ ]+)([^\ ]*)
RewriteRule ^/article/%1?%2 [L,R=301]
RewriteCond %{THE_REQUEST} ^[A-Z]+\ /([^/]+/)*[^.#?\ ]+\.php([#?][^\ ]*)?\ HTTP/
RewriteRule ^(([^/]+/)*[^.]+)\.php $1 [R=301,L]
</IfModule>
results:
1+2+3 works fine but 4 not works
Thanks in advance

Answer 1

Try reordering the rules and keep 301 rules before internal rewrites:
Options -Multiviews
Options +FollowSymLinks
RewriteEngine On
RewriteBase /
#add www 1
RewriteCond %{HTTP_HOST} !^www\.mondomain\.com$ [NC]
RewriteRule ^(.*)$ http://www.mondoamin.com/$1 [R=301,L]
#rewrite url 4
RewriteCond %{THE_REQUEST} /article\.php\?id_article=([^&\ ]+)([^\ ]*)
RewriteRule ^ /article/%1?%2 [L,R=301]
RewriteRule ^article/([^/]+)/?$ /article.php?id_article=$1 [L,QSA]
RewriteCond %{THE_REQUEST} ^[A-Z]+\ /([^/]+/)*[^.#?\ ]+\.php([#?][^\ ]*)?\ HTTP/
RewriteRule ^(([^/]+/)*[^.]+)\.php $1 [R=301,L]
#remove .php extension 2
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [R=301,L]
# Removes index.php from ExpressionEngine URLs 3
RewriteCond %{THE_REQUEST} ^GET.*index\.php [NC]
RewriteCond %{REQUEST_URI} !/system/.* [NC]
RewriteRule (.*?)index\.php/*(.*) /$1$2 [R=301,NE,L]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php [L]
# Directs all EE web requests through the site index file
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule ^(.*)$ /index.php/$1 [L]

Answer 2

this is the my last .htaccess code:
Options -Multiviews
Options +FollowSymLinks
RewriteEngine On
RewriteBase /
add www
RewriteCond %{HTTP_HOST} !^www.mondomain.fr$ [NC]
RewriteRule ^(.*)$ http://www.mondomaine.fr/$1 [R=301,L]
rewrite dynamic url
RewriteCond %{THE_REQUEST} /article.php\?id_article=([^&\ ]+)([^\ ]*)
RewriteRule ^ /article/%1?%2 [L,R=301]
RewriteRule ^ article/([^/]+)/?$ /article.php?id_article=$1 [L,QSA]
RewriteCond %{THE_REQUEST} ^[A-Z]+\ /([^/]+/)[^.#?\ ]+.php([#?][^\ ])?\ HTTP/
RewriteRule ^(([^/]+/)*[^.]+).php $1 [R=301,L]
remove .php extension
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [R=301,L]
Removes index.php from ExpressionEngine URLs
RewriteCond %{THE_REQUEST} ^GET.*index.php [NC]
RewriteCond %{REQUEST_URI} !/system/.* [NC]
RewriteRule (.?)index.php/(.*) /$1$2 [R=301,NE,L]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^(.*)$ $1.php [L]
Directs all EE web requests through the site index file
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule ^(.*)$ /index.php/$1 [L]