how to swap two variables in one line

I know this is a nerd thing, but here it is :

Code:

<?php
$a = 30;
$b = 50;

$a = ( $a + $b ) - ( $b = $a );

echo $a . " " . $b;
?>

It works only with numeric variables.

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Hehe.  Cool

Hahah thats tight.

Hehe. It sounds like a geek joke

Very smart

[web directory]

But that is 4 lines of code!

Only teasing... great stuff!

But that is 4 lines of code!

Only teasing... great stuff!

Actually it is only one : $a = ( $a + $b ) - ( $b = $a );

[web directory]

HAHA... I know! I was teasing...

<?php
1. $a = 30;
2. $b = 50;

3. $a = ( $a + $b ) - ( $b = $a );

4. echo $a . " " . $b;
?>

Sorry if my sense of humour is a bit corny, you'll get to know me! I also stir a lot too.

Hehehe. This was a rushed post.

Next time I will read more carefully, and I will sleep more at night

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