Warning: Trying to access array offset on value of type null in...

[bogdan2305]

This function returns error Warning: Trying to access array offset on value of type null in... if $result is null.

    public function getResult($query, $pos = 0)
    {
        if($query) {
            $results = $this->query($query);
            $result = $results->fetch_array();
            return $result[$pos];
        }
    }

Must be updated:

    public function getResult($query, $pos = 0)
    {

        if($query) {
            $results = $this->query($query);
            $result = $results->fetch_array();
            if($result)
            {
                return $result[$pos]; 
            } 
        } 
    }