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<html><body>$date = date_create('2019-01-01');date_add($date, date_interval_create_from_date_string('1 year 35 days'));echo date_format($date, 'Y-m-d');</body></html><html><body>$date = date_create('2019-01-01');date_add($date, date_interval_create_from_date_string('1 year 35 days'));echo date_format($date, 'Y-m-d');</body></html>