laravel-5

Validation 383
different:field
The field under validation must have a different value than field.
digits:value
The field under validation must be numeric and must have an exact length of value.
digits_between:min,max
The field under validation must have a length between the given min and max.
email
The field under validation must be formatted as an e-mail address.
exists:table,column
The field under validation must exist on a given database table.
Basic Usage Of Exists Rule
.
1 'state' => 'exists:states'
Specifying A Custom Column Name
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1 'state' => 'exists:states,abbreviation'
You may also specify more conditions that will be added as “where” clauses to the query:
.
1 'email' => 'exists:staff,email,account_id,1'
Passing NULL as a “where” clause value will add a check for a NULL database value: