I have a probleme with submit form (booking) it re-submit on page reload
this is code of conditions to post :
if ( 'POST' == $_SERVER['REQUEST_METHOD'] && ! empty( $_POST['action'] )
&& $_POST['action'] == "new_post" ){
if(!empty($_POST['start']) || !empty($_POST['end'])){
// submit and send email}
}
after submit it show thank message and details of booking ( else it shows errors and the form) but if user reload page it re-submit a post again in database!
can someone give me an idea , i tried to unset $_POST['end']
and $_POST['end']
but nothing works
Thank you for your support