How can I manually return or throw a validation error/exception in Laravel?

How can I manually return or throw a validation error/exception in Laravel?

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laravel

Laravel: Validation unique on update

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laravel

Laravel update model with unique validation rule for attribute

php laravel validation eloquent

laravel

Laravel Password & Password_Confirmation Validation

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laravel

Laravel Validation one of two fields must be filled

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laravel

How to Validate on Max File Size in Laravel?

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laravel

Laravel IN Validation or Validation by ENUM Values

php validation laravel enums

laravel

Laravel 5.3 date validator: equal to or after start_date

php laravel validation laravel-5.3

laravel

What is the best practice to show old value when editing a form in Laravel?

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laravel

Check if laravel model got saved or query got executed

php mysql validation laravel model

laravel

How validate unique email out of the user that is updating it in Laravel?

php laravel validation email authentication

laravel

Required_if laravel with multiple value

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laravel

Laravel 5 Form Request data pre-manipulation

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laravel

Laravel validation checkbox

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laravel

Laravel 5.3 Validation Fails when Variables are Null

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laravel