/**
* 将当天之前的数据归档到logs文件夹
* @since 2
* @param string $log_dir 日志保存目录路径
* @return boolean
*/
public function files($log_dir)
{
$re = false;
$sql = 'SELECT `id`,`log_date`,`log_ip`,`log_message` FROM `' . $this->table_name . '` ORDER BY `log_date` ASC LIMIT ?,30';
$sth = $this->db->prepare($sql);
$limit_page = 0;
//遍历数据表，将记录按照时间顺序保存到文件
do {
$sth->bindParam(1, $limit_page, PDO::PARAM_INT);
$sth->execute();
$res = $sth->fetchAll(PDO::FETCH_ASSOC);
if (is_array($res) && count($res) > 0) {
foreach ($res as $k => $v) {
$date_ym = substr($v['log_date'], 0, 4) . substr($v['log_date'], 5, 2);
$date_d = substr($v['log_date'], 8, 2);
$log_file_dir = $log_dir . DS . $date_ym;
if (core_file::new_dir($log_file_dir) == false) {
return $re;
}
$log_file = $log_file_dir . DS . $date_d . '.log';
$log_message = $v['log_date'] . "\t" . $v['log_ip'] . "\t" . $v['log_message'] . "\r\n";
if (core_file::edit_file($log_file, $log_message, true) == false) {
return $re;
}
}
}
$limit_page++;
} while (is_array($res) && count($res) > 0);
//清空日志数据表
$sql_trash = 'TRUNCATE TABLE `' . $this->table_name . '`';
if ($this->db->exec($sql_trash) == true) {
$re = true;
}
return $re;
}
