TalkPHP - View Single Post - The most inventive way to switch 2 values

Alan @ CIT · 01-04-2008, 09:18 PM

Ok, my new attempt - using bitwise operators to swap the values about:

PHP Code:


			
<?php



$a = 1;

$b = 2;



$a ^= $b ^= $a ^= $b;



echo $a;

echo $b;

Alan

01-04-2008, 09:18 PM	#6 (permalink)
Alan @ CIT Member of the Month The Frequenter Join Date: Apr 2005 Location: South UK Posts: 483 Thanks: 51	Ok, my new attempt - using bitwise operators to swap the values about: PHP Code: `<?php $a = 1; $b = 2; $a ^= $b ^= $a ^= $b; echo $a; echo $b;` Alan