php - how to redirect a URL according to get variables in URL -

i trying change website url according variables can increase security of website.

for example want change address, htaccess file:

rewriteengine on rewritecond %{request_filename} !-f rewritecond %{request_filename} !-d rewriterule ^(.*)$ /category.php?cat_id=$1&mode=full&start=$1 

and website url is:

http://joinexam.in/category.php?cat_id=17&mode=full&start=36  

i want convert url to:

http://joinexam.in/category/1736 

• where cat_id = 17
• and start= 36

so become 1736 after category.php page, trying using .htaccess file.

here want take both cat_id , start variable, according these variables, want change url of website.

can explain correct way achieve this?

.htaccess

this forwards every url index.php.

options +followsymlinks rewriteengine on  rewritecond %{script_filename} !-d rewritecond %{script_filename} !-f  rewriterule ^.*$ ./index.php 

php

get "original" url inside index.php:

// gives full url $request_uri = $_server['request_uri'];   // split path '/' $params     = split("/", $request_uri); 

then might route based on these $params. , fast router lib suggest: https://github.com/nikic/fastroute using this, don't have mess around htaccess regexp stuff , can keep things @ php level :)