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Subject: Re: PHP7 Coalesce operator
From: ajf@ajf.me (Andrea Faulds)

Hi,

shadda wrote:
> I had a question-suggestion based around the cool new operator we’re getting in PHP7, the ?? operator, which as I understand it is the functional equivalent to perl’s // operator; in that they both test for whether or not a variable is defined, rather than it’s truthiness.

This is not strictly correct. Though something of a misnomer, the 'null 
coalesce operator' checks if a variable doesn't exist, but also that it 
is not null, i.e. it functions like isset().

Thanks.

-- 
Andrea Faulds
http://ajf.me/