neiyou_user_web/app/Models/VerifyCode.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

/**
 * 注册时的激活验证码
 */
class VerifyCode extends Model
{

    protected $table = 'verify_code';

    public function scopeRecentUnused($query)
    {
        return $query->whereStatus(0)->where(
            'created_at',
            '<=',
            date(
                "Y-m-d H:i:s",
                strtotime("-15 minutes")
            )
        );
    }

}