<?php
$one = $_POST[Ra]+$_POST[P];
$two = $_POST[Ra]-$_POST[Rp];
$three = $_POST[D]*$two;
$four = $three+$one*$_POST[Rp];
$a = $four*$_POST[D];
if($a>10)
echo "Contact the nearest florist immediatly";
elseif ($a>5 and $a<=10)
echo "Prepare a few remarks and deliver them with sincerity"...