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<?php trait FooTrait { protected DateTimeImmutable $creationDate; public function getCreationDate(): \DateTimeImmutable { return $this->creationDate; } protected function initTimestamp(\DateTimeImmutable $creationDate): void { $this->creationDate = $creationDate; } } abstract class Foo { use FooTrait; public function __construct(\DateTimeImmutable $creationDate) { $this->initTimestamp($creationDate); } } class Bar extends Foo { } class Z extends Bar { protected function initTimestamp(DateTimeImmutable $creationDate): void {} } (new Z(new DateTimeImmutable('now')))->getCreationDate();
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
Fatal error: Uncaught Error: Typed property Foo::$creationDate must not be accessed before initialization in /in/gOaFu:7 Stack trace: #0 /in/gOaFu(31): Foo->getCreationDate() #1 {main} thrown in /in/gOaFu on line 7
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught Error: Typed property Foo::$creationDate must not be accessed before initialization in /in/gOaFu:7 Stack trace: #0 /in/gOaFu(31): Foo->getCreationDate() #1 {main} thrown in /in/gOaFu on line 7
Process exited with code 255.
Output for 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'DateTimeImmutable' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/gOaFu on line 4
Process exited with code 255.
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