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run code in 300+ PHP versions simultaneously
<?php class User { public string $username; public function __construct(string $name) { $this->username = $name; } } interface Factory { public static function make(string $name): object; } class UserFactory implements Factory { public static function make(string $name): User { return new User($name); } } $uf = UserFactory::make("Tiffany"); echo $uf->username;
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Tiffany
Output for 7.1.26 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'string' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/4nGnG on line 5
Process exited with code 255.

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