If your .htaccess file is not working

 Here are some steps if your  .htaccess file is not working in PHP Server cPanel

1 )  <?php   phpinfo()   ?>     check here mod_rewrite is enable or not 

2)  create mod_rewrite.php file in your root directory and place the below code in it:

<?php 
echo
"Mod_rewrite is activated!"
; ?>

Now rename your old .htaccess file

Just create new .htaccess file and place the below code.

RewriteEngine On
RewriteRule ^.*$ mod_rewrite.php

Now hit save.

now info here 

https://serverfault.com/questions/397168/how-to-i-test-if-mod-rewrite-is-enabled