clrghouz/app/Models/Casts/UTF8StringOrNull.php

<?php

namespace App\Models\Casts;

use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
use Illuminate\Database\Eloquent\Model;

class UTF8StringOrNull implements CastsAttributes
{
    /**
     * Cast the given value.
     *
     * @param  array<string, mixed>  $attributes
     */
    public function get(Model $model,string $key,mixed $value,array $attributes): ?string
    {
        return $value ? utf8_decode($value) : NULL;
    }

    /**
     * Prepare the given value for storage.
     *
     * @param  array<string, mixed>  $attributes
     */
    public function set(Model $model,string $key,mixed $value,array $attributes): ?string
    {
        return $value ? utf8_encode($value) : NULL;
    }
}