PHP: XOR swap
March 26th, 2007 by 
Pete
The XOR swap lets you swap the value of integer variables without using a temporary variable, it's also slightly faster.
PHP:
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$x ^= $y;
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$y ^= $x;
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$x ^= $y;
I can't actually think of a good reason Why you'd want to use this in PHP since memory isn't normally a big issue, however it might be good for showing off 
.
// Pete Graham xXx
Posted in Uncategorized, Website Development, php, computer science | 
March 29th, 2007 at 3:27 pm
[…] Much like the PHP XOR swap there’s no real reason this is any better than using a temporary variable, but you might be able to impress chicks with it or something. […]
November 24th, 2007 at 3:22 pm
$x^=$y^=$x^=$y;