How can I check multiple conditions which single where clause in CodeIgniter?

Question

I am working on codeigniter php framework. I have three category in the database namely :

1. category_name1
2. category_name2
3. category_name3

Now I want to use these three categories in WHERE clause in single function. For that I wrote some of those query, but none of this work:

The column name is category_name and values are above mentioned

$this->db->where('category_name','category_name1');
$this->db->or_where('category_name','category_name2');


$this->db->where('category_name','category_name1' or 'category_name2');

Now how can I use this?

Answer 1

UPDATED: try it this way

$this->db->where('category_name', $category_name1);
$this->db->or_where('category_name', $category_name2);

or

$this->db->where_in('category_name', $category_name1, $category_name2);

Answer 2

您可以使用where_in，如下所示：

$this->db->where_in('category_name', array($category_name1, $category_name2));

Answer 3

尝试这个

   $this->db->where('category_name',$category_name1)->where('category_name ',$category_name2)->where('category_name ',$category_name3);