location / {
if (!-e $request_filename) {
rewrite ^/index.php(.*)$ /index.php?s=$1 last;
rewrite ^/admin.php(.*)$ /admin.php?s=$1 last;
rewrite ^/api.php(.*)$ /api.php?s=$1 last;
rewrite ^(.*)$ /index.php?s=$1 last;
break;
}
}