How to use 'where' on column with comma separated values in laravel

问题

I am using php with laravel framework. I want to get rows from table that contains user id. Problem here is that user id is integer value and column(author) contain more than one comma separated integer values. Here is example.

DB::table('stories')->where('author','4')->get();

author column have values : row 1: 2,4,5 | row 2: 1,3,14 | row 3 : 4,5 and I will get row 1 and 3. So, Please help me to get right rows.

回答1:

You can use whereRaw like as

DB::table('stories')->whereRaw("find_in_set('4',author)")->get();

回答2:

First convert your string to array using

$row = "2,4,5";
$idsArr = explode(',',$row);  
DB::table('stories')->whereIn('author',$idsArr)->get();

来源：https://stackoverflow.com/questions/33493588/how-to-use-where-on-column-with-comma-separated-values-in-laravel