Lesson - 59 Laravel 13 Validation Tutorial – Writing Custom Rules and Error Overrides

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In this lesson of our Laravel 13 Full Course, we are taking complete control of our data integrity by building Custom Validation Rules and custom messages!

While Laravel's built-in rules (like required, email, and unique) handle 90% of your needs, real-world applications often require unique business logic—like validating a specific phone number format, verifying a secure password pattern, or checking an external API payload. In this tutorial, you will learn how to use php artisan make:rule to generate dedicated rule classes.

We will break down the structural layout of a Laravel 13 rule object, focusing on how the validate() method handles data logic under the hood and how to pass custom failures using the $fail closure. You'll also learn how to inject dynamic parameters into your error strings to keep your UI clear, helpful, and highly professional.

If you're ready to write enterprise-level, reusable validation code in PHP 8.3, hit that play button! Like, subscribe, and let's jump into the IDE.

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