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<?php class A { public string $default = 'default'; } class B { public function __construct(public string $default = 'default') {} } $a = new A(); echo "Original A: {$a->default}\n"; $b = new B(); echo "Original B: {$b->default}\n"; $a = (new ReflectionClass($a))->newInstanceWithoutConstructor(); echo "New A: {$a->default}\n"; $b = (new ReflectionClass($b))->newInstanceWithoutConstructor(); echo "New B: {$b->default}\n";
Output for git.master, git.master_jit, rfc.property-hooks
Original A: default Original B: default New A: default Fatal error: Uncaught Error: Typed property B::$default must not be accessed before initialization in /in/DU0tG:19 Stack trace: #0 {main} thrown in /in/DU0tG on line 19
Process exited with code 255.

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