Super Simple code:
<a href="https://paypal.me/myaddress/<?= $order->info['currency'] . preg_replace("/[^0-9.,]/", '', $order->info['total']); ?>" target="_blank"><?= BUTTON_PAYPAL_ME; ?></a>
Language dependencies:
define('BUTTON_PAYPAL_ME', 'Pay with Paypal <i class="fa fa-paypal" aria-hidden="true"></i>');
Text email SS PP code:
echo 'https://paypal.me/myaddress/' . $order['currency'] . $orders_total['ot_total']['value'] . ' (Pay with PayPal.me)';
myaddress= https://paypal.me/grab
:D