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<?php #[\Attribute] class AttribWithName { public readonly string $name; public function __construct(?string $name = null) { if ($name) { $this->name = $name; } } public function fromReflection(\ReflectionClass $subject): void { $this->name ??= $subject->getShortName(); } } #[AttribWithName()] class C {} $attr = (new ReflectionClass(C::class))->getAttributes()[0]->newInstance(); print "Ok up to here.\n"; // And now the fatal. print $attr->name;
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.5 - 8.3.25, 8.4.1 - 8.4.12
Ok up to here. Fatal error: Uncaught Error: Typed property AttribWithName::$name must not be accessed before initialization in /in/CUgYv:27 Stack trace: #0 {main} thrown in /in/CUgYv on line 27
Process exited with code 255.
Output for 8.0.1 - 8.0.28
Parse error: syntax error, unexpected identifier "string", expecting variable in /in/CUgYv on line 6
Process exited with code 255.
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