Fatal Error: Type of App\Filters\EventFilter::$filters Must Be Array

[Thavarshan]

Issue Description:

When using the EventFilter class that extends Filterable\Filter, a fatal error occurs due to a type mismatch with the property $filters. The error states that $filters must be of type array, as expected by the Filterable\Filter class, but it appears to be set to a different type or not properly initialized as an array.

Error Message:

Symfony\Component\ErrorHandler\Error\FatalError
Type of App\Filters\EventFilter::$filters must be array (as in class Filterable\Filter)

Steps to Reproduce:

1. Define an EventFilter class that extends Filterable\Filter.
2. Attempt to apply the filter in a query.
3. Encounter the fatal error due to a type mismatch with $filters.

Expected Behavior:

The EventFilter class should be able to declare $filters as an array, and the filter functionality should work as intended without any type errors.

Actual Behavior:

A fatal error is thrown because of a type mismatch, preventing the proper use of the filtering functionality.

Code Snippet:

The EventFilter class is defined as follows:

namespace App\Filters;

use Filterable\Filter;
use Illuminate\Database\Eloquent\Builder;

class EventFilter extends Filter
{
    protected $filters = ['filter'];

    protected function filter(string $value): Builder
    {
        return $this->builder->where('column', $value);
    }
}

Possible Solution:

Ensure that $filters is properly typed as an array. If there are default values or initialisations, they should be in an array format. For example:

protected array $filters = ['filter'];

Additional Context:

• PHP version: 8.3.4
• Laravel version: 11.3