Return multiple values: Difference between revisions

=={{header|PHP}}==

Every function returns one value. The conventional way to return multiple values is to bundle them into an array.

<lang php>function addsub($x, $y) {

return array($x + $y, $x - $y);

}</lang>

You can use the <code>list()</code> construct to assign to multiple variables:

<lang php>list($sum, $difference) = addsub(33, 12);

echo "33 + 12 = $sum\n";

echo "33 - 12 = $difference\n";</lang>

=={{header|Python}}==

Every function returns one value. The conventional way to return multiple values is to bundle them into a tuple.

<lang python>def addsub(x, y):

return x + y, x - y</lang>

(Note that parentheses are not necessary for a tuple literal in Python.)

You can assign to a comma-separated list of targets:

<lang python>sum, difference = addsub(33, 12)

print "33 + 12 = %s" % sum

print "33 - 12 = %s" % difference</lang>