Mine

<form action="index.php" method="POST"><br>Atk <input type="text" name="atk"><br>Str <input type="text" name="str"><br>Def <input type="text" name="def"><br>Hp <input type="text" name="hp"><br>Prayer <input type="text" name="prayer"><br>Ranged <input type="text" name="ranged"><br>Magic <input type="text" name="magic"><br><input type="submit" value="Calculate"></form><?php if(isset($_POST['submit'])) {  function IS_ODD($number) { return($number & 1); }  function IS_EVEN($number) { return(!($number & 1)); }  //Declare the five variables   $n1 = $_POST['atk'];   $n2 = $_POST['str'];   $n3 = $_POST['def'];   $n4 = $_POST['hp'];   $n5 = $_POST['prayer'];  $n6 = $_POST['ranged'];   $n7 = $_POST['magic'];   //Combat calc  $meleebase = ((( $n1 * 130 )+( $n2 * 130 )) / 400);  if(IS_ODD($n5))    $basecmb = ((( $n3 * 100 )+( $n4 * 100 )+( $n5 * 50 )) / 400 );  else    $basecmb = ((( $n3 * 100 )+( $n4 * 100 )+(( $n5 - 1 ) * 50 )) / 400 );  if(IS_ODD($n6))    $rangedbase = (((( $n6 - 1 )+( $n6 * 2 )) * 65) / 400);  else    $rangedbase = (( $n6 * 195 ) / 400);  if(IS_ODD($n7))    $magicbase = (((( $n7 - 1 )+( $n7 * 2 )) * 65) / 400);  else    $magicbase = (( $n7 * 195 ) / 400);  //Make the total  $meleecmb = $basecmb + $meleebase;  $rangedcmb = $basecmb + $rangedbase;  $magiccmb = $basecmb + $magicbase;    //Display the total  echo Melee: $meleecmb;  echo Ranged: $rangedcmb;  echo Magic: $magiccmb;}?>