Mybooklive mysqli

Hello friends, I installed OpenWrt in my my live book

{
"kernel": "4.14.131",
"hostname": "OpenWrt",
"model": "MyBook Live",
"board_name": "wd,mybooklive",
"release": {
"distribution": "OpenWrt",
"version": "18.06.4",
"revision": "r7808-ef686b7292",
"target": "apm821xx/sata",
"description": "OpenWrt 18.06.4 r7808-ef686b7292"
}
}

I have php7-mod-mysqli installed but dame error:

bugal error: Error not captured: 'mysqli' class not found in /svr/www/demo/index.php:7 Stack trace: # 0 {main} thrown in /svr/www/demo/index.php on line 7

Can someone help me just missing this to be all OK

opkg update && opkg install php7-mod-mysqli

@slh

root@OpenWrt:~# opkg update && opkg install php7-mod-mysqli
Package php7-mod-mysqli (7.2.19-1) installed in root is up to date.
root@OpenWrt:~# reboot

still giving error;

**Fatal error** : Uncaught Error: Class 'mysqli' not found in /svr/www/demo/index.php:7 Stack trace: #0 {main} thrown in **/svr/www/demo/index.php** on line **7**

in php info:

Loaded Configuration File /etc/php.ini
Scan this dir for additional .ini files /etc/php7
Additional .ini files parsed /etc/php7/20_calendar.ini, /etc/php7/20_curl.ini, /etc/php7/20_hash.ini, /etc/php7/20_mysqlnd.ini, /etc/php7/20_pdo_mysql.ini, /etc/php7/30_mysqli.ini