jingcai-php/app/Model/Plw.php

<?php

namespace App\Model;

class Plw extends BaseModel
{

    protected $casts = [
        'result' => 'array',
    ];

    public function getCloseTime($earlySecond) {
        $time = strtotime($this->close_time);
        return date('Y-m-d H:i:s', $time - $earlySecond);
    }
}