Online PHP editor | output for g99QA

<?php interface Store { public function fetch(): Record; } interface Record {} class FooStore { public function __construct($conn) { $this->conn = $conn; } public function fetch(): FooRecord { $data = $this->conn->fetch(); return new FooRecord($data); } } class FooRecord { public function __construct($data) { $this->data = $data; } } class XmlFormatter { public function FooRecordToXml(Store $fooStore): FooXml { $fooRecord = $fooStore->fetch(); return new FooXml($fooRecord); } } class FooXml { public function __construct(FooRecord $record) { $this->record = $record; } public function output(): string { return "<FooRecord>{$this->record}</FooRecord>"; } }