3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class ValueObject implements JsonSerializable { protected $value; public function jsonSerialize() { return $this->value; } } class Email extends ValueObject { public function __construct(string $value) { $email = filter_var($value, FILTER_VALIDATE_EMAIL); if (false === $email) { throw new Exception('Email is invalid.'); } $this->value = $email; } } class Age extends ValueObject { public function __construct(int $value) { if ($value > 150) { throw new Exception('Age must be less than 150.'); } $this->value = $value; } } $email = new Email('opexus@gmail.com'); $age = new Age(23); echo json_encode(compact('email', 'age'));
based on 5QPIu
Output for 7.0.0 - 7.2.0
{"email":"opexus@gmail.com","age":23}
Output for 5.4.0 - 5.6.28
Catchable fatal error: Argument 1 passed to Email::__construct() must be an instance of string, string given, called in /in/RmIoQ on line 27 and defined in /in/RmIoQ on line 9
Process exited with code 255.