using PHP's null coalescing operator on an array

Question

I am using PHP\'s null coalescing operator described by http://php.net/manual/en/migration70.new-features.php.

Null coalescing operator ¶
The null coalescing         


        

Answer 1

You don't add anything to params. Your given code simply generates an unused return value:

$params['phone'] ?? 'default'; // returns phone number or "default", but is unused

Thus, you will still have to set it:

$params['phone'] = $params['phone'] ?? 'default';