--TEST-- GH-9775: Backed enum in array_unique() --FILE-- --EXPECT-- array(8) { [0]=> enum(Test::COURSES_ADMIN) [1]=> enum(Test::COURSES_REPORTING_ACCESS) [2]=> enum(Test::BUNDLES_ADMIN) [3]=> enum(Test::USERS_ADMIN) [4]=> enum(Test::B2B_DASHBOARD_ACCESS) [6]=> enum(Test::INSTRUCTORS_ADMIN) [8]=> enum(Test::COUPONS_ADMIN) [9]=> enum(Test::AUTHENTICATED) }