Suppose i am developing a plugin that is related too booking.Next time i want to add an add-ons on that plugin for payment.Then i added another add-ons for paypal payment.
Assume that below is the payment gateway UI interface in html
<div class="payments-options"> <div class="bank-payment"></div> <div class="cash-on-delivery"></div> <!--- Here i want to add a new div for paypal same as other two ----> </div>
So how can i use
add_filters() , apply_filter(), add_action() and do_action() Here to achieve this?