How to programmatically find public properties of a class from inside one of it's methods
As you already realized, PHP's build in get_object_vars
is scope-sensitive. You want the public object properties only.
So from that function to the public variant is not a large step:
function get_object_public_vars($object) {
return get_object_vars($object);
}
Calling this get_object_public_vars
will give you only the public properties then because it is place out of scope of the current object.
If you need more fine-grained control, you can also make use of the ReflectionObject
:
(new ReflectionObject($this))->getProperties(ReflectionProperty::IS_PUBLIC);
Which has the benefit that you don't need to introduce another function in the global namespace.
Does not work with php version >=7
As such, I can't really recommend solution any longer.
Use reflection instead
To get the public properties from within the class
$publicProperties = call_user_func('get_object_vars', $this);
the "trick" is that get_object_vars
is being called from the scope of call_user_func
and not the scope of the object
no need for reflection, stand-alone functions, closures, etc