oop - How do I access class variables of a parent object in PHP? -

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an instance of class instantiates couple of other objects, example class b:

$foo = new b();

i access a's public class variables methods within b.

unless i'm missing something, way pass current object instances of b:

$foo = new b($this);

is best practice or there way this?

that looks fine me, tend use rule of thumb of "would maintaining understand it?" , that's understood solution.

if there's 1 "a", consider using registry pattern, see example http://www.phppatterns.com/docs/design/the_registry


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