$result = model('Friend')->where('FIND_IN_SET(:id,fid)',['id' => $id],['uid' => $result['id']])->find();
Friend: table name
fid: column name containing data separated by commas
$id: field name
$result = model('Friend')->where('FIND_IN_SET(:id,fid)',['id' => $id],['uid' => $result['id']])->find();
Friend: table name
fid: column name containing data separated by commas
$id: field name