zabbix fronetend showing "Minimum required PHP 7.2" even though php 7.2 is installed

[azxqw]

Hi,
i recently updated my zabbix server to 5.0 from 3.4 on an ubuntu 18.04 machine.
the update and the DB update went smoothly, however when i try to enter the frontend i'm greeted with the php minimum version required error.
i checked and indeed i have php 7.2 instaled on the server, and i cant understand what the problem is.
any help will be greatly appreciated

[isaqueprofeta]

Check if you have more than one version of PHP installed (maybe an old 5 or 7 installation) and ensure that php -V is 7.2 and the binary is on your PATH.

[Atsushi]

Is your web server set up to work with PHP 7.2? For example, is the following code named phpinfo.php etc., placed in the Zabbix contents directory, and is it confirmed that the version is 7.2 or higher when accessed from a web browser?

code:

<?php
phpinfo();
?>

URL:

http://YourServerIP/zabbix/phpinfo.php

[azxqw]

the code returns this - "PHP Version 7.0.33-0ubuntu0.16.04.15"
how do i set it up to 7.2?

[azxqw]

never mind i managed
thank you!