Saving a returned function value as a variable

[revron]

How can I convert the returned value of a function to a variable that can be reused in other functions? I need to carry the value over to another function to get a total.

[coditoergosum]

fuction foo() {
global $bar;
$bar = "foo"
}

echo "$bar";

[coditoergosum]

Oops. Haha. Bad code... anyway, the main idea is to use global to define the variable scope as global.

function foo()
{
global $bar;
$bar = "foo";
}
foo();
echo "$bar";

[revron]

Still confused. What I am trying to do is to save the value that is returned from the functions below...

---

function calculate_shipping($total_weight,$ship_method,$total_price)

{

   if ($total_price >= 1000.00) { return 0.00; }
   else
   if ($total_weight <= "10" and $ship_method == "UPS_Ground")  { return 7.00; }
   if ($total_weight <= "10" and $ship_method == "UPS_Overnight")  { return 14.00; }
   if ($total_weight >= "10" and $ship_method == "UPS_Ground")  { return 30.00; }
   if ($total_weight >= "10" and $ship_method == "UPS_Overnight")  { return 60.00; }

}

____________and_______________

function calculate_tax($total_price,$state)
{

if ($state == PA || $state == Pa || $state == pa || $state == pA)
return $total_price*0.06;

}

---

.... to be used in another function to calculate the total purchase price. ie: ($shipping+$tax+$total_price) Right now, since $total_price is already registered in a session, the value is carried into the totalling function. The $tax and $shipping just disappear. Not sure how to incorporate the $foo/$bar code as suggested,

[wilsonodk]

Like this...

function calculate_shipping($total_weight, $ship_method, $total_price) { 
  if ($total_price >= 1000.00) { 
     return 0.00; 
  } elseif ($total_weight <= "10" and $ship_method == "UPS_Ground") { 
     return 7.00; 
  } elseif ($total_weight <= "10" and $ship_method == "UPS_Overnight") { 
     return 14.00; 
  } elseif ($total_weight >= "10" and $ship_method == "UPS_Ground") {
     return 30.00; 
  } elseif ($total_weight >= "10" and $ship_method == "UPS_Overnight") {
     return 60.00; 
  } 
}
// If my values were this...
$returnedValue = calculate_shipping("11", "UPS_Ground", 14.25);
echo $returnedValue;
// My output would be... 30.00

HTH