xyzshop/helper/refill/store_member.php

<?php

namespace refill;

class store_member
{
    private static $stInstance = null;
    public static function instance()
    {
        if (self::$stInstance == null) {
            self::$stInstance = new store_member();
        }

        return self::$stInstance;
    }


    private $mStoreMember;
    private function __construct()
    {
        $this->mStoreMember = [];
    }

    public function get_member($store_id)
    {
        if(array_key_exists($store_id,$this->mStoreMember)) {
            return $this->mStoreMember[$store_id];
        }
        else
        {
            $mod_store = Model('refill_provider');
            $provider = $mod_store->getProviderInfo(['store_id' => $store_id]);
            if (empty($provider)) {
                return [];
            } else {
                $this->mStoreMember[$store_id] = ['member_id' => intval($provider['account_id']), 'member_name' => $provider['name']];
                return $this->mStoreMember[$store_id];
            }
        }
    }
}