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Date: Tue, 1 Apr 2014 15:24:33 +0200
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Subject: Weak logic operators
From: php@tutteli.ch ("Robert Stoll")

Heya,

I wrote my question already on the general list but got no answer. Maybe someone on this list can help me out.
I was wondering for what reason PHP has weak logic operators. So far I have only used the weak logic operator 'or' in
the following situation:

foo() or die("nooo");

And it is quite a long time ago I have used it the last time. You could also write the following instead:

if(!foo()){
  die("noooo");
}

I am aware of that one can use 'or' and 'and' as substitute for || and && if using brackets in addition:

$a = ( foo() and bar() );

But I do not really see the benefit of writing it this ways. 
I think the weak logic operators just add more complexity to the language and hence decrease maintenance. Moreover they
are a source of confusion (should I use 'or' or || etc.). The situation for the operator 'xor' is even worse than for
'or' and 'and' in my opinion, since it has no short-circuit and one could use ^ instead of xor:

$a = ( foo() xor bar() );

Could be written as follows:
$b = foo() ^ bar();

So I am curious, are there other use cases out there that justify the existence of those operators?

Cheers,
Robert