Question

Below I have a code where I am trying to run a query using mysqli.

 if (isset($_POST['module']))
    {
        $query = "SELECT ModuleNo, ModuleName FROM Module WHERE ModuleId = ?";

        $stmt = $mysqli->prepare($query); //line 99

        $stmt->bind_param('s', $_POST['module'] );

        if ( $stmt->execute() )
        {   
            $stmt->bind_result($moduleno, $modulename); 

            $stmt->fetch();

}
    }

Problem is that it is giving me these two undefined errors:

Notice: Undefined variable: mysqli in ... on line 99 
Fatal error: Call to a member function prepare() on a non-object in ... on line 99 

My question is what is causing the two errors in mysqli code as I don’t see a problem with the code I have compiled.

Answer 1

Make sure you’re setting $mysqli properly in your script.