Php 如果值类似于多个列，则选择SQL列

我需要用ajax创建一个自动完成搜索。建议应仅包含输入最多的10个结果。如果值类似于我的变量，则搜索查询必须检查多个列

但我的问题是创建查询和php逻辑

有插件或类似的东西吗？ 如果列中的值类似于我的变量，如何选择该列？

---

我需要创建一个count查询，它在所有列中计算完整单词被空格分隔的频率为什么不在这里使用union all

select department from entries where department like '%myVariable%'
union all
select grade from entries where grade like '%myVariable%'

然后，这将为您排序结果：

select department, count(*) cnt from (
select department from entries where department like '%myVariable%'
union all
select grade from entries where grade like '%myVariable%')a
group by department
order by count(*) desc

select department, count(*) cnt from (
select department from entries where department like '%myVariable%'
union all
select grade from entries where grade like '%myVariable%')a
group by department
order by count(*) desc