Comments on: PHP Swap (Simple Swapping)

By: Sajith M.R

Sajith M.R — Sat, 31 Jul 2010 10:26:41 +0000

Yes good , but it won’t work for all types of object swapping, say an array swap . Only for integers

By: yrhon

yrhon — Thu, 29 Jul 2010 08:11:52 +0000

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

By: David Hagler

David Hagler — Tue, 01 Dec 2009 17:04:49 +0000

miah the xor trick only properly works on integers OR if string happen to be the same length, it will work, it’s best to avoid that trick unless you really need it.

$a = “a”;
$b = “gggggg”;

$a = $a ^ $b;
echo “$b “;
$b = $a ^ $b;
echo “$b “;
$a = $a ^ $b;
echo “$a $b “;

// $a = ‘g’; $b = ‘a’;

By: Blog SEO

Blog SEO — Thu, 14 May 2009 14:24:26 +0000

Nice trick, thanks

miah, I like your trcik too

Thanks guys !

Tiger

By: miah

miah — Mon, 23 Feb 2009 16:30:49 +0000

$a = ‘bar’;
$b = ‘foo’;

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

echo $a . $b;

// its faster and needs less memory ^^

By: ruX

ruX — Tue, 26 Aug 2008 19:25:23 +0000

Good idea
AFIK, this construction needs more memory.