main/core/Entity/Content.php
public function setModified($modified = null)
    {
        if ($modified) {
            $this->modified = $modified;
        } else {
            $this->modified = new \Datetime();
        }

        return $this;
    }
public function setModified($modified = null)
    {
        if ($modified) {
            $this->modified = $modified;
        } else {
            $this->modified = new \Datetime();
        }

        return $this;
    }
public function setModified ( $ modified = null ) { if ( $ modified ) { $ this -> modified = $ modified ; } else { $ this -> modified = new \ Datetime ( ) ; } return $ this ; }
Set modified.

@param \DateTime $modified

@return Content
Set modified .