lib/PHPExif/Exif.php
public function getCreationDate()
    {
        if (!isset($this->data[self::CREATION_DATE])) {
            return false;
        }

        return $this->data[self::CREATION_DATE];
    }
public function getCreationDate()
    {
        if (!isset($this->data[self::CREATION_DATE])) {
            return false;
        }

        return $this->data[self::CREATION_DATE];
    }
Returns the creation datetime, if it exists

@return \DateTime|boolean