laravel-custom-validation

✅ Laravel project demonstrating how to create and use custom validation rules.
PHP

Enhancing Laravel Validation: Custom Rules for Real-World Needs

In many of my Laravel projects, I often encounter scenarios where the built-in validation rules don’t quite meet the specific requirements of the application. Whether it’s validating a national ID format, ensuring a mobile number has exactly 11 digits, or restricting file uploads to certain MIME types, these unique cases call for custom solutions.

To address these needs, I developed a set of custom validation rules tailored for Laravel applications. You can find the repository here:
👉 github.com/badass-commits/laravel-custom-validation

Why Custom Validation Rules?

Laravel’s default validation rules are great, but sometimes you need more specific logic. For example:

  • National ID Validation: Ensures a provided NID matches a given format or checksum.
  • Mobile Number Validation: Checks that a number has exactly 11 digits, possibly with specific starting digits.
  • Floating-Point Validation: Validates a float with precision or range constraints.
  • MIME Restrictions: Accepts or rejects specific MIME types for uploads.

By creating custom rule classes, I can cleanly encapsulate this logic and reuse it wherever I need.

What’s Included in the Package?

The repository currently includes:

  • FloatNumberCustomValidation
  • MimeExclusion
  • MimeInclusion
  • MobileNumber11DigitCustomValidation
  • NidSmartCardCustomValidation

Each class implements Laravel’s validation rule interface, and can be used like any other validation rule in a controller or FormRequest.

How to Use

Let’s say you want to validate that a mobile number is 11 digits long.

Step 1 – Import the Rule

use App\Rules\MobileNumber11DigitCustomValidation;

Step 2 – Apply in Validation

$request->validate([
    'mobile_number' => ['required', new MobileNumber11DigitCustomValidation()],
]);

Getting Started

  1. Clone the repository: 
    git clone https://github.com/badass-commits/laravel-custom-validation.git
  2. Copy the rule classes you need into your Laravel app under app/Rules/.
  3. Use the rules in your validation logic as shown above.

Final Thoughts

Custom validation rules might seem like a small thing, but they really help keep your logic clean and modular — especially in complex or domain-specific applications. If you find this useful or have ideas for additional rules, feel free to fork the repo or open a PR. Always happy to improve this for future use.