Laravel Validation Rules for limiting the minimum and maximum number of fileds in given array

LimitNumberOfItemsRule.php

<?php

namespace App\Rules;

use Illuminate\Support\Str;
use Illuminate\Contracts\Validation\Rule;

class LimitNumberOfItemsRule implements Rule
{
    /** @var array */
    public $fieldsToBeChecked = [];

    /** @var int */
    public $minimumNumberOfFiledsToBeFilled;

    /** @var int */
    public $maximumNumberOfFiledsToBeFilled;

    /** @var bool */
    public $isLesserThanMinimumNumberOfFiledsToBeFilled = false;

    /** @var bool */
    public $isGreaterThanMaximumNumberOfFiledsToBeFilled = false;

    /** @var string */
    public $minimumNumberOfFiledsValidationMessage;
    
    /** @var string */
    public $maximumNumberOfFiledsValidationMessage;

    /** @var \Illuminate\Http\Request */
    public $request;

    /**
     * Create a new rule instance.
     *
     * @return void
     */
    public function __construct(array $fieldsToBeChecked = [],int $minimumNumberOfFiledsToBeFilled, int $maximumNumberOfFiledsToBeFilled,string $minimumNumberOfFiledsValidationMessage = null, string $maximumNumberOfFiledsValidationMessage = null)
    {
        $this->fieldsToBeChecked = $fieldsToBeChecked;
        $this->minimumNumberOfFiledsToBeFilled = $minimumNumberOfFiledsToBeFilled;
        $this->maximumNumberOfFiledsToBeFilled = $maximumNumberOfFiledsToBeFilled;
        $this->minimumNumberOfFiledsValidationMessage = $minimumNumberOfFiledsValidationMessage;
        $this->maximumNumberOfFiledsValidationMessage = $maximumNumberOfFiledsValidationMessage;
        $this->request = request();
    }

    /**
     * Determine if the validation rule passes.
     *
     * @param  string  $attribute
     * @param  mixed  $value
     * @return bool
     */
    public function passes($attribute, $value)
    {
        $fromInputCount = collect($this->request->only($this->fieldsToBeChecked))
                        ->filter()
                        ->count();
        
        if($fromInputCount < $this->minimumNumberOfFiledsToBeFilled){

            $this->isLesserThanMinimumNumberOfFiledsToBeFilled = true;

            return false;
        }
        
        if($fromInputCount > $this->maximumNumberOfFiledsToBeFilled){
            $this->isGreaterThanMaximumNumberOfFiledsToBeFilled = true;
            return false;
        }

        return true;
    }

    /**
     * Get the validation error message.
     *
     * @return string
     */
    public function message()
    {
        if($this->isLesserThanMinimumNumberOfFiledsToBeFilled){

            if($this->minimumNumberOfFiledsValidationMessage){
                return $this->minimumNumberOfFiledsValidationMessage;
            }

            $string = 'Atleast ';
            $string .= $this->minimumNumberOfFiledsToBeFilled;
            $string .= ' ';
            $string .= Str::plural('Field',$this->minimumNumberOfFiledsToBeFilled);
            $string .= ' needs to be Filled From ';
            $string .= implode(',',$this->fieldsToBeChecked);

            return $string;
        }

        if($this->isGreaterThanMaximumNumberOfFiledsToBeFilled){

            if($this->maximumNumberOfFiledsValidationMessage){
                return $this->maximumNumberOfFiledsValidationMessage;
            }

            $string = 'Only ';
            $string .= $this->maximumNumberOfFiledsToBeFilled;
            $string .= ' ';
            $string .= Str::plural('Field',$this->maximumNumberOfFiledsToBeFilled);
            $string .= ' needs to be Filled From ';
            $string .= implode(',',$this->fieldsToBeChecked);

            return $string;
        }
    }
}