If variables within a class are set by the constructor, then get_object_vars works OK.  If they are set after the class object is constructed, then it doesn't work OK.

Example:

class a
{ var $b;
}

$aa = new a();
$aa->b = "Hi";
print_r(get_object_vars($aa);  //Result will not be as expected.

This error is complicating an effort to persist a class.


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Related Issue:  It does not appear possible to have a variable within a class which is of type class. What a shame.