solarai/app/Libs/EncryptUser.php

<?php
namespace App\Libs;

use Carbon\Carbon;
use Illuminate\Support\Facades\Crypt;

trait EncryptUser
{
    use Encryptable;

    protected $_crypt_data = null;
    protected $_cryptable = 'cryptable';
    protected $encryptable = [
        'birthday',
        'gender',
        'age',
    ];

    public function setBirthdayAttribute($value)
    {
        $this->setAttribute('birth_day', $value);
    }

    public function setGenderAttribute($value)
    {
        $this->setAttribute('gender', $value);
    }

    public function setAgeAttribute($value)
    {
        $this->setAttribute('age', $value);
    }

    public function getBirthdayAttribute()
    {
        $value = $this->getAttribute('birthday');
        if (empty($value)) {
            return null;
        }

        return Carbon::parse($value)->format('Y-m-d');
    }

    public function getGenderAttribute()
    {
        $value = $this->getAttribute('gender');
        if (empty($value)) {
            return null;
        }

        return $value;
    }

    public function getAgeAttribute()
    {
        $value = $this->getAttribute('age');
        if (empty($value)) {
            return null;
        }

        return (int) $value;
    }
}