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This also enables code reduction and simpler writing. AllowDynamicProperties Attribute attribute allowing dynamic properties As this update deprecates dynamic properties, and with the release of PHP . their use will be associated with the appearance of an exception: ErrorException. [AllowDynamicProperties] class User user new User; user->foo 'bar'; PHP . introduces the: attribute AllowDynamicProperties, which allows you to remove the warning message: E_DEPRECATEDand use the parameter in a correlated class.

The latter will become possible after declaring the indicated directive. Disjunctive Normal Form Types typy DNF Adding the above functionality gives you the chance to link Union and Intersection Types. The example assumes that photo editor the following interfaces and classes have been defined: interface A interface B interface C extends A interface D class W implements A class X implements B class Y implements A, B class Z extends Y implements.



Then: Accepts an object that implements both A and B, OR an object that implements D A&B|D Accepts an object that implements C, OR a child of X that also implements D, OR null C|X&D|null Accepts an object that implements all three of A, B, and D, OR an int, OR null. A&B&D|int|null The functionality will work as long as Intersection Types are grouped in brackets. Fetch properties of enums in const expressions From PHP . the use of: ->?->to retrieve enum properties in constant expressions will become possible.