如何使用PHP和Mysql将新值与现有数据库值连接

I need one help.I need to join one new value with existing value present inside database column using PHP and Mysql.I am explaining my table below.

db_admin

id    supplier_id

1      2,3,4,5,6

Here in supplier_id column i have some value like 2,3,4,5,6.suppose i need to add another value lets say 7 with the existing supplier_id with comma operator finally the result will be 2,3,4,5,6,7 So i need query for that.Please help me.

Just Use Following query using Concat

UPDATE `db_admin` SET `supplier_id` = concat(supplier_id, ',7') WHERE `id` = 1;

As Gordon Linoff stated you shouldn't try to handle it in this manner. Make a proper linking table between this table and the supplier table.

https://en.wikipedia.org/wiki/Associative_entity

You can add the 7 now, but tomorrow you want to remove the 4 and then you have a new problem.