TP5中find_in_set的用法

TP5.1.22版本

$id=4;
Db::name('menu')->where('FIND_IN_SET(:id,pid_all)',['id' => $id])->update([$field => $title]);

$map[]=['exp','FIND_IN_SET(2,needID)'];

$db->where($map)->select();

TP5.1.21   版本之后数组查询支持：

要达到这样子查询：

1、首先引用： use think\db\Where;

2、定义数组：$where = new Where;

3、就可以用了：$where['title'] = ['like', "%".$sotitle."%"];

$where['class_id'] = ['in', '$cid_all'];
$where['id'] = ['in', $all_user_id];//或这样子
$where['title'] = ['like', '%php%'];
$where['id'] = ['<>', $id];
$where['id'] = ['notin', $all_user_id];//不等于

//值为数字
$id=419;
$where[] = ['exp',Db::raw("FIND_IN_SET($id,category)")];//category值为数字，例子：419,415,414
//值为字符串
$id值等于dfd 要注意'引号
$where[] = ['exp',Db::raw("FIND_IN_SET('$id',category)")];//category值为数字，例子：'349/417/419','349/413/415','349/413/416'