本小白在按照Wiki的备案号修改方案修改时发生某些奇怪的BUG，下面把Wiki&遇到的问题贴在下面（本人不会php等语言，只是个人的解决方案分享）
ICP record number
Due to legal requirements in China mainland, all websites hosted in China mainland should post its ICP record number. You may edit ./application/views/interface_assets/footer.php to add the required information for website registration.
现将解决方案贴在下面：
在/assets/css/general.css文件添加
.footer-link {
text-align: center;
position:absolute;
bottom: 0;
left: 0;
right: 0;
}
在./application/views/interface_assets/footer.php 末尾添加如下代码
<?php if ($this->uri->segment(2) == "login") { ?>
<a class="footer-link" href="https://beian.miit.gov.cn/" target="_blank">你的备案号</a>
<?php } ?>
重启Apache2即可解决
效果如图
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