define (true/false)

[Sebastian <sebastian@xxxxxxxxxxxxxxxxxxx>]

i never really used constants before so this may sound stupid..
when you define a constant using define() and want to return true/false 
is this logical:

if($bars == 3)
{
   define('BAR', 1);
}

then:

if(BAR)
{
   // bars is true
}

or should i need to do an else statement as well:

if($bars == 3)
{
   define('BAR', 1);
}
else
{
  define('BAR', 0)
}

lastly is it more practical to just do:

if($bars == 3)
{
     $bar = true;
}

i am curious what most people would use.


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