Question

I have a script that is supposed to read from the database and return an array which is used by another function to display a table. However the function is throwing an error.

Fatal error: Call to a member function fetch_array() on a non-object in C:\xampp\htdocs\nu\userClass.php on line 205

I don’t know what could be the error because I have already created an object for the MySQLi class. Here is my code

function getUser($user_id)
        {
            require("config.php");
            //TODO Clean variables
            $dbc = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
            /* check connection */
            if (mysqli_connect_errno()) 
            {
            printf("Connect failed: %s\n", mysqli_connect_error());
            exit();
            }
            $query2 = "SELECT family.Position, food.Meal "."FROM family, food "."WHERE family.Position = food.Position";    
            $result = $dbc->query($query2);
            $row = $result->fetch_array();
            /* close connection */
            $dbc->close();
            return $row;
        }

Answer 1

This error message seems to say that you have an error in your SQL query.

Try replacing the call to $dbc->query() by the following lines :

$result = $dbc->query($query2);
if ($result === false) {
    echo 'MySQL error: ' . $dbc->error;
}

This will show you a more detailed error message.