src/Debug/Output/Html.php
protected function dumpFloat($val)
    {
        $date = $this->checkTimestamp($val);
        if ($date) {
            $this->wrapAttribs['class'][] = 'timestamp';
            $this->wrapAttribs['title'] = $date;
        }
        return $val;
    }
protected function dumpFloat($val)
    {
        $date = $this->checkTimestamp($val);
        if ($date) {
            $this->wrapAttribs['class'][] = 'timestamp';
            $this->wrapAttribs['title'] = $date;
        }
        return $val;
    }
Dump float value

@param integer $val float value

@return float