php导出csv文件韩文出现乱码如何解决？

Question

尝试过网上说的 设置 bom，转码等 都不行，有知道的吗？
echo(chr(255).chr(254));
echo(mb_convert_encoding($content,"UTF-16LE","UTF-8"));

Answer 1

PHP 导出CSV 含韩文乱码
https://blog.csdn.net/yfgcq/article/details/7452991
php 多语言(UTF-8编码)导出Excel、CSV乱码解决办法之导出UTF-8编码的Excel、CSV
https://blog.csdn.net/dekhjgdfv895375041/article/details/101989711