Online PHP editor | output for r9ZHV

<?php var_dump(new DateInterval('P1D') == new DateInterval('P1Y')); var_dump(new DateInterval('P1D') === new DateInterval('P1Y')); var_dump(new DateInterval('P1D') == new DateInterval('P1D')); var_dump(new DateInterval('P1D') === new DateInterval('P1D')); var_dump(new DateTime('2010-01-01') == new DateTime('2010-01-01')); var_dump(new DateTime('2010-01-01') === new DateTime('2010-01-01')); var_dump(new DateTime('2010-01-01') == new DateTime('2010-01-02')); var_dump(new DateTime('2010-01-01') === new DateTime('2010-01-02'));