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<?php class IAmImmutable { private $name; public static function createFromName($name) { return new self($name); } private function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } $object = IAmImmutable::createFromName('Peter'); var_dump($object instanceof IAmImmutable); var_dump($object->getName()); $object->__construct('Bob'); var_dump($object->getName());
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) string(5) "Peter" Fatal error: Uncaught Error: Call to private method IAmImmutable::__construct() from global scope in /in/naLrV:29 Stack trace: #0 {main} thrown in /in/naLrV on line 29
Process exited with code 255.

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