Gravity Forms redirect based on conditions

I want to redirect based on conditions in Gravity Forms.

//REDIRECT BASED ON GRAVITY SELECTIONS
add_filter( 'gform_confirmation_17', __NAMESPACE__ . '\\redirectfilter', 10, 4 );
function redirectfilter($confirmation, $form, $entry, $ajax) {
    GFCommon::log_debug( __METHOD__ . '(): started.' );
    session_start();

    $laatste = $entry['1'];

    if(isset($_SESSION['form'])) {
        GFCommon::log_debug( __METHOD__ . '(): SESSION[form] is set.' );
        $result = array();

        foreach($_SESSION['form'] as $row){
            $result[] = $row;
        }

        if ($result[0] === 'Diesel'   $result[1] === 'Mobiel'  $laatste === 'Kunststof'  ) {

            GFCommon::log_debug( __METHOD__ . '(): Diesel and Mobiel and Kunststof' );

            $confirmation = array('redirect' = esc_url(home_url('/producten/filters/brandstof/diesel/materiaal/kunststof/toepassing-filter/mobiel/')));
        } else {
            $confirmation = "Geen producten gevonden aan jouw criteria";
        }   

    }

    GFCommon::log_debug( __METHOD__ . '(): finished.' );
    return $confirmation;       
}

But I cant seem to get it to work, I have the feeling i'm missing something but I can't find it :/

You can find my Gravity Forms log here: http://pastebin.com/hm5RYpyZ.

Help will be greatly appreciated.

Best Regards,

Dylan Smit