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I can't make out for certain whether that plant has opposite or alternate leaf arrangement. Perhaps _flowers_ could humor us with some more images, showing the attachment of leaves at the stems.
That said...I believe Pittosporum sp. are alternate in leaf arrangement - though it is amazing how few images in all the choices in PlantFiles have attempted to show this ID feature. Some that live in Pittosporum heaven (growin?) might contribute some images that show this feature for us denizens of climes that don't support this species.
All the rest of the genera mentioned above - Weigela, Euonymus, and Ligustrum - are opposite in arrangement.