.htaccess mulitple language (slug URL/friendly URL)

Question

I am working on a multiple language site. For a URL .com/business-industry/?parent_id=3&value=cars it works perfectly. This will make the URL .com/business-industry/3/cars But the site also has .com/nl/ and .com/de/ I've added the next rules to .htaccess. The first one works but the second and third for /nl and /de doesn't work.

The second one has to go for example from .com/nl/business-industrie/?parent_id=3&value=cars to .com/nl/business-industrie/3/cars

RewriteEngine On
RewriteRule ^business-industry/([0-9]*)/(.*)/?$ /index.php?business-industry=1&parent_id=$1&value=$2 [NC,L]

RewriteRule ^nl/business-industrie/([0-9]*)/(.*)/?$ /index.php?business-industrie=1&parent_id=$1&value=$2 [L]

RewriteRule ^de/business-branche/([0-9]*)/(.*)/?$ /index.php?business-branche=1&parent_id=$1&value=$2 [NC,L]

Much appreciation for the help.

Thanks in advance.

Answer 1

Replace your 3 rules with this single rule:

RewriteEngine On

RewriteRule (?:^|/)(business-[^/]+)/([0-9]+)/([^/]*)/?$ /index.php?$1=1&parent_id=$2&value=$3 [NC,L,QSA]