Will isset() trigger __get and why?

Question

class a {
   function __get($property){...}
}

$obj = new a();
var_dump(isset($obj->newproperty));

Seems the answer is nope but why?

Answer 1

No, __get should not be triggered when you're trying to determine whether a property is set : testing if a property is set is not the same thing as trying to get its value.

Using isset triggers the __isset magic method.

See :

• isset
• and Overloading