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<?php echo "Using plain class\n"; class A {}; $a = new A(); $a->foo = 'bar'; echo "Extending from stdClass\n"; class B extends stdClass {}; $b = new B(); $b->foo = 'bar'; echo "Using PHP attribute\n"; #[\AllowDynamicProperties] class C {}; $c = new C(); $c->foo = 'bar';
Output for 8.2.10 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Using plain class Deprecated: Creation of dynamic property A::$foo is deprecated in /in/WCQRP on line 7 Extending from stdClass Using PHP attribute
Output for 8.1.23 - 8.1.33
Using plain class Extending from stdClass Using PHP attribute

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