function espresso_display_paypal($payment_data)
{
    global $wpdb;
    extract($payment_data);
    include_once 'Paypal.php';
    $myPaypal = new EE_Paypal();
    echo '<!-- Event Espresso PayPal Gateway Version ' . $myPaypal->gateway_version . '-->';
    global $org_options;
    $paypal_settings = get_option('event_espresso_paypal_settings');
    //Check for an alternate PayPal email address
    if (isset($event_meta['paypal_email']) && !empty($event_meta['paypal_email']) && filter_var($event_meta['paypal_email'], FILTER_VALIDATE_EMAIL) != FALSE) {
        //Alternate PayPal email - using the paypal meta key field.
        $paypal_id = $event_meta['paypal_email'];
    } else {
        $paypal_id = empty($paypal_settings['paypal_id']) ? '' : $paypal_settings['paypal_id'];
    }
    $paypal_cur = empty($paypal_settings['currency_format']) ? '' : $paypal_settings['currency_format'];
    $no_shipping = isset($paypal_settings['no_shipping']) ? $paypal_settings['no_shipping'] : '0';
    $use_sandbox = $paypal_settings['use_sandbox'];
    if ($use_sandbox) {
        $myPaypal->enableTestMode();
    }
    do_action('action_hook_espresso_use_add_on_functions');
    // get attendee_session
    $SQL = "SELECT attendee_session FROM " . EVENTS_ATTENDEE_TABLE . " WHERE id=%d";
    $session_id = $wpdb->get_var($wpdb->prepare($SQL, $attendee_id));
    // now get all registrations for that session
    $SQL = "SELECT a.final_price, a.orig_price, a.quantity, ed.event_name, a.price_option, a.fname, a.lname ";
    $SQL .= " FROM " . EVENTS_ATTENDEE_TABLE . " a ";
    $SQL .= " JOIN " . EVENTS_DETAIL_TABLE . " ed ON a.event_id=ed.id ";
    $SQL .= " WHERE attendee_session=%s ORDER BY a.id ASC";
    $items = $wpdb->get_results($wpdb->prepare($SQL, $session_id));
    //printr( $items, '$items  <br /><span style="font-size:10px;font-weight:normal;">' . __FILE__ . '<br />line no: ' . __LINE__ . '</span>', 'auto' );
    foreach ($items as $key => $item) {
        $item_num = $key + 1;
        $myPaypal->addField('item_name_' . $item_num, $item->price_option . ' for ' . $item->event_name . '. Attendee: ' . $item->fname . ' ' . $item->lname);
        $myPaypal->addField('quantity_' . $item_num, absint($item->quantity));
        if ($item->final_price < $item->orig_price) {
            $adjustment = abs($item->orig_price - $item->final_price);
            if (absint($item->quantity) > 1) {
                $adjustment = $adjustment * absint($item->quantity);
            }
            $myPaypal->addField('amount_' . $item_num, $item->orig_price);
            $myPaypal->addField('discount_amount_' . $item_num, $adjustment);
            //$myPaypal->addField('discount_amount2_' . $item_num, $adjustment);//Not sure this line is needed.
        } else {
            $myPaypal->addField('amount_' . $item_num, $item->final_price);
        }
        if (isset($paypal_settings['tax_override']) && $paypal_settings['tax_override'] == true) {
            $myPaypal->addField('tax_' . $item_num, '0.00');
        }
        if (isset($paypal_settings['shipping_override']) && $paypal_settings['shipping_override'] == true) {
            $myPaypal->addField('shipping_' . $item_num, '0.00');
        }
    }
    //printr( $myPaypal, '$myPaypal  <br /><span style="font-size:10px;font-weight:normal;">' . __FILE__ . '<br />line no: ' . __LINE__ . '</span>', 'auto' );
    $myPaypal->addField('business', $paypal_id);
    if ($paypal_settings['force_ssl_return']) {
        $home = str_replace("http://", "https://", home_url());
    } else {
        $home = home_url();
    }
    $myPaypal->addField('charset', "utf-8");
    $myPaypal->addField('return', $home . '/?page_id=' . $org_options['return_url'] . '&r_id=' . $registration_id . '&type=paypal');
    $myPaypal->addField('cancel_return', $home . '/?page_id=' . $org_options['cancel_return']);
    $myPaypal->addField('notify_url', $home . '/?page_id=' . $org_options['notify_url'] . '&id=' . $attendee_id . '&r_id=' . $registration_id . '&event_id=' . $event_id . '&attendee_action=post_payment&form_action=payment&type=paypal');
    $event_name = $wpdb->get_var('SELECT event_name FROM ' . EVENTS_DETAIL_TABLE . " WHERE id='" . $event_id . "'");
    $myPaypal->addField('cmd', '_cart');
    $myPaypal->addField('upload', '1');
    $myPaypal->addField('currency_code', $paypal_cur);
    $myPaypal->addField('image_url', empty($paypal_settings['image_url']) ? '' : $paypal_settings['image_url']);
    $myPaypal->addField('no_shipping ', $no_shipping);
    $myPaypal->addField('first_name', $fname);
    $myPaypal->addField('last_name', $lname);
    $myPaypal->addField('email', $attendee_email);
    $myPaypal->addField('address1', $address);
    $myPaypal->addField('city', $city);
    $myPaypal->addField('state', $state);
    $myPaypal->addField('zip', $zip);
    if (!empty($paypal_settings['bypass_payment_page']) && $paypal_settings['bypass_payment_page'] == 'Y') {
        $myPaypal->submitPayment();
    } else {
        $button_url = espresso_select_button_for_display($paypal_settings['button_url'], "paypal/btn_stdCheckout2.gif");
        $myPaypal->submitButton($button_url, 'paypal');
    }
    if ($use_sandbox) {
        echo '<h3 style="color:#ff0000;" title="Payments will not be processed">' . __('PayPal Debug Mode Is Turned On', 'event_espresso') . '</h3>';
        $myPaypal->dump_fields();
    }
}
function espresso_display_paypal($payment_data)
{
    extract($payment_data);
    global $wpdb;
    include_once 'Paypal.php';
    $myPaypal = new EE_Paypal();
    echo '<!-- Event Espresso PayPal Gateway Version ' . $myPaypal->gateway_version . '-->';
    global $org_options;
    $paypal_settings = get_option('event_espresso_paypal_settings');
    $paypal_id = empty($paypal_settings['paypal_id']) ? '' : $paypal_settings['paypal_id'];
    $paypal_cur = empty($paypal_settings['currency_format']) ? '' : $paypal_settings['currency_format'];
    $no_shipping = isset($paypal_settings['no_shipping']) ? $paypal_settings['no_shipping'] : '0';
    $use_sandbox = $paypal_settings['use_sandbox'];
    if ($use_sandbox) {
        $myPaypal->enableTestMode();
    }
    $myPaypal->addField('business', $paypal_id);
    if ($paypal_settings['force_ssl_return']) {
        $home = str_replace("http://", "https://", home_url());
    } else {
        $home = home_url();
    }
    $myPaypal->addField('return', $home . '/?page_id=' . $org_options['return_url'] . '&registration_id=' . $registration_id . '&type=paypal');
    $myPaypal->addField('cancel_return', $home . '/?page_id=' . $org_options['cancel_return']);
    $myPaypal->addField('notify_url', $home . '/?page_id=' . $org_options['notify_url'] . '&id=' . $attendee_id . '&registration_id=' . $registration_id . '&event_id=' . $event_id . '&attendee_action=post_payment&form_action=payment&type=paypal');
    $event_name = $wpdb->get_var('SELECT event_name FROM ' . EVENTS_DETAIL_TABLE . " WHERE id='" . $event_id . "'");
    $myPaypal->addField('cmd', '_cart');
    $myPaypal->addField('upload', '1');
    $i = 1;
    $sql = "SELECT attendee_session FROM " . EVENTS_ATTENDEE_TABLE . " WHERE id='" . $attendee_id . "'";
    $session_id = $wpdb->get_var($sql);
    $sql = "SELECT amount_pd FROM " . EVENTS_ATTENDEE_TABLE . " WHERE attendee_session='" . $session_id . "'";
    $amount_pds = $wpdb->get_col($sql);
    $cost = 0;
    foreach ($amount_pds as $amount_pd) {
        $cost += $amount_pd;
    }
    $myPaypal->addField('item_name_' . $i, $event_name);
    $myPaypal->addField('amount_' . $i, $cost);
    $myPaypal->addField('quantity_' . $i, '1');
    $myPaypal->addField('currency_code', $paypal_cur);
    $myPaypal->addField('image_url', empty($paypal_settings['image_url']) ? '' : $paypal_settings['image_url']);
    $myPaypal->addField('no_shipping ', $no_shipping);
    $myPaypal->addField('first_name', $fname);
    $myPaypal->addField('last_name', $lname);
    $myPaypal->addField('email', $attendee_email);
    $myPaypal->addField('address1', $address);
    $myPaypal->addField('city', $city);
    $myPaypal->addField('state', $state);
    $myPaypal->addField('zip', $zip);
    if (!empty($paypal_settings['bypass_payment_page']) && $paypal_settings['bypass_payment_page'] == 'Y') {
        $myPaypal->submitPayment();
    } else {
        if (empty($paypal_settings['button_url'])) {
            if (file_exists(EVENT_ESPRESSO_GATEWAY_DIR . "/paypal/btn_stdCheckout2.gif")) {
                $button_url = EVENT_ESPRESSO_GATEWAY_DIR . "/paypal/btn_stdCheckout2.gif";
            } else {
                $button_url = EVENT_ESPRESSO_PLUGINFULLURL . "gateways/paypal/btn_stdCheckout2.gif";
            }
        } elseif (isset($paypal_settings['button_url'])) {
            $button_url = $paypal_settings['button_url'];
        } else {
            $button_url = EVENT_ESPRESSO_PLUGINFULLURL . "gateways/paypal/btn_stdCheckout2.gif";
        }
        $myPaypal->submitButton($button_url, 'paypal');
    }
    if ($use_sandbox) {
        echo '<h3 style="color:#ff0000;" title="Payments will not be processed">' . __('Paypal Debug Mode Is Turned On', 'event_espresso') . '</h3>';
        $myPaypal->dump_fields();
    }
}