Best way to get user ip address in php

Here is a function to getting ip using filter of local and lan ip's.

function get_ip()
{
   $list = array( 'REMOTE_ADDR', 'CLIENT_IP', 'HTTP_CLIENT_IP', 
                  'HTTP_PROXY_CONNECTION', 'HTTP_FORWARDED', 'HTTP_X_FORWARDED', 
                  'FORWARDED_FOR_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED_FOR_IP', 
                  'HTTP_X_FORWARDED_FOR', 'FORWARDED', 'X_FORWARDED_FOR', 'FORWARDED_FOR', 
                  'X_FORWARDED', 'HTTP_VIA', 'VIA' );
   foreach ( $list as $v ) {
      if ( isset( $_SERVER[$v] ) )
         return $_SERVER[$v];
      else
         continue;
   }
   return false;
}
 
echo get_ip();

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