查看“FIND IN SET函数”的源代码

category_ids字段：2,4,8,13,25
=== 原生SQL： ===
<pre>
select * from table where FIND_IN_SET('13',category_ids)
 </pre>
===ThinkPHP ===
<pre>
$category_ids = 13;
$where[] = ['exp', Db::raw("FIND_IN_SET($category_ids,category_ids)")];
</pre>

[category:thinkphp]
[category:mysql]