PHP_EOL 写入字符串换行 , php获取毫秒 microtime

    private function miclog($t1,$t2,$name){
        $lasttime = ($t2 - $t1).'ms';
        $content = date('Y-m-d H:i:s',time()).'   '.$lasttime.'   '.$name;
        file_put_contents('/tmp/ssyv4/micro.log',$content.PHP_EOL,FILE_APPEND);
    }

　　// php获取毫秒
    private function getMillisecond() {
        list($s1, $s2) = explode(' ', microtime());
        return (float)sprintf('%.0f', (floatval($s1) + floatval($s2)) * );
    }