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<?php declare(strict_types=1); final class Person { public function __construct( public readonly string $first, public readonly string $last ) { } } $json = '{"first": "Cher"}'; $data = json_decode($json); $person = new Person($data->first, $data->last);
Output for 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1
Warning: Undefined property: stdClass::$last in /in/JoNLT on line 17 Fatal error: Uncaught TypeError: Person::__construct(): Argument #2 ($last) must be of type string, null given, called in /in/JoNLT on line 17 and defined in /in/JoNLT:7 Stack trace: #0 /in/JoNLT(17): Person->__construct('Cher', NULL) #1 {main} thrown in /in/JoNLT on line 7
Process exited with code 255.
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