Write a Program to swap two numbers in PHP.

Answer 1

<?php
$a=101;
$b=202;
$a=[$b,$b=$a][0];
echo $a.":".$b;
?>

Oh wait. you want only number. But mine do any type of value.... :(

Answer 2

<?php
$a = 25;
$b = 32;

$a ^= $b;
$b ^= $a;
$a ^= $b;

echo $a;
echo "\n";
echo $b;

?>