If you want the form to be submitted on the same page then remove the action
from the form attributes.
<form method="POST" name="myform">
<!-- Your HTML code Here -->
</form>
However, If you want to reload the page or redirect the page after submitting the form from another file then you call this function in php
and it will redirect the page in 0 seconds. Also, You can use the header
if you want to, just make sure you don't have any content before using the header
function page_redirect($location)
{
echo '<META HTTP-EQUIV="Refresh" Content="0; URL='.$location.'">';
exit;
}
// I want the page to go to google.
// page_redirect("http://www.google.com")