<?php
class Foo implements JsonSerializable {
public function jsonSerialize() {
return new self;
}
}
# Segfault!
PD9waHAKY2xhc3MgRm9vIGltcGxlbWVudHMgSnNvblNlcmlhbGl6YWJsZSB7CiAgcHVibGljIGZ1bmN0aW9uIGpzb25TZXJpYWxpemUoKSB7CiAgICByZXR1cm4gbmV3IHNlbGY7CiAgfQp9CgojIFNlZ2ZhdWx0IQp2YXJfZHVtcChqc29uX2VuY29kZShuZXcgRm9vKSk7