Online PHP editor | output for o7Qgo

<?php DEFINE('A', 3); $DAY = 1; class Days{ function __construct($d){ $this->day = $d ; } function addToDate(){ global $DAY; $this->day = $this->day + $DAY; return $this->day; } function modifyDay($d){ global $DAY; $DAY = $d; } function addDefine(){$this->day = $this->day + A; return $this->day} } $p = new Days(5); echo $p->addToDate().' '; $p->modifyDay(8); echo $p->addToDate().' '; echo $p->addDefine().' ';