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Alan @ CIT · 03-13-2008, 10:43 PM

Hi all,

Just a quick tip for you all

I'm sure that we've all used something like the following before to toggle a bool variable:

PHP Code:


			
if ($myVar == true)

{

    $myVar = false;

}

else

{

    $myVar = true;

}

Well you'll be please to know that there is a shorter way of doing it

PHP Code:


			
$myVar ^= true;

This does exactly the same as our if() block above - if $myVar is false, it sets it to true. If it is true, it sets it to false.

Hopefully usefull to someone

Alan

03-13-2008, 10:43 PM	#1 (permalink)
Alan @ CIT Member of the Month The Frequenter Join Date: Apr 2005 Location: South UK Posts: 483 Thanks: 51	Toggling true/false variables Hi all, Just a quick tip for you all I'm sure that we've all used something like the following before to toggle a bool variable: PHP Code: `if ($myVar == true) { $myVar = false; } else { $myVar = true; }` Well you'll be please to know that there is a shorter way of doing it PHP Code: `$myVar ^= true;` This does exactly the same as our if() block above - if $myVar is false, it sets it to true. If it is true, it sets it to false. Hopefully usefull to someone Alan