https://blog.wongcw.com/2018/10/21/%e7%ae%80%e5%8d%95%e3%80%81-%e7%81%b5%e6%b4%bb%e3%80%81%e5%bc%ba%e5%a4%a7%e7%9a%84php%e9%87%87%e9%9b%86%e5%b7%a5%e5%85%b7-querylist/