AplusAgency/app/Http/Requests/ContactRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class ContactRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, mixed>
     */
    public function rules()
    {
        return [
            'fullname' => ['required'],
            'phone' => ['required'],
            'email' => ['required'],
            'service_id' => ['required'],
            'entered_captcha_code' => ['required','same:displayed_captcha_code']
        ];
    }

    public function messages(){
        return[

            'fullname.required' => 'Full name is required.',
            'phone.required' => 'Phone number is required.',
            'email.required' => 'Email is required.',
            'service_id.required' => 'Please select a service.',
            'entered_captcha_code.required' => 'Please enter captcha.',
            'entered_captcha_code.same' => 'Captcha is incorrect.'

        ];
    }
}