return 2 variables from a function

[delfa]

<?
$num = 3;
function square($num)
{
$new_num = $num * $num;
  return $new_num;
}


echo square(3); ?>

That will simply print 9!
Well, most people know how to get a variable from a function.
But what if you want to get 2 variables?
How do u do that?

:mad:

[dalecosp]

<?
function two_nums($number) {
   $squared=$number*$number;
   $result=array($number, $squared);
   return $result;
}

$answers=two_nums(3);

echo $answers[0]." squared is ".$answers[1];

// "3 squared is 9"

?>

[barand]

A function can only return one result but that result can be an array.

function squareAndCube($n) {
   $result = array()
   $result[] = $n * $n;
   $result[] = $n * $n * $n;
   return $result;
}
$myresults = squareAndCube(3);
echo "3^2 is ". $myresults[0];
echo "3^3 is ". $myresults[1];

Alternatively, pass arguments by reference to store results

function squareAndCube2 ($n, &$sq, &$cu) {
   $sq = $n * $n;
   $cu = $n * $n * $n;
}
$square = $cube = 0;
squareAndCube (3, $square,$cube);
echo "$square $cube ";

hth

[php4geek]

function squareAndCube( $n ) {
  $rslt = Array( 
          0 => $n * $n,
          1 => $n * $n * $n
          );
  return $rslt;
}

list( $square, $cube ) = squareAndCube( 2 );

echo "{$square}<br />{$cube}";

output:
4
8

[delfa]

THanks guys!

all those options worked just fine!