<?php
echo '<form action="#" method="post">
<input type="text" name="txt" />
</form> ';
 $A = $HTTP_COOKIE_VARS['txt'] = $_POST['txt'];    
 if (isset($A))
 {
echo "welcom $A";

 }
     else {echo"sorry";}

?>








<?php
$int_value1 = 13;
$int_value2 = 45;
$int_value3 = $int_value1 * $int_value2;
echo "the product of $int_value1 * $int_value2<br>  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;          &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;                 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=".$int_value3;
?>