laravel - Change default column name 'id' when validating -

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i trying validate email field make sure it's unique, not in row id, so:

'email' => 'required|email|unique:seller_user,email,'.$seller_id,

that works, automatically searches column named id, whereas in table column called seller_id, how can change that?

you can specify field search using fourth parameter rule:

'email' => 'required|email|unique:seller_user,email,'.$seller_id.',seller_id',

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