xyzshop/helper/search_param.php

<?php
/**
 * Created by PhpStorm.
 * User: stanley-king
 * Date: 2017/3/19
 * Time: 下午10:46
 */
require_once (BASE_ROOT_PATH . '/helper/history_helper.php');

class search_param
{
    private $mKeyWord;
    private $mBrandId;
    private $mHotId;

    public function __construct($param)
    {
        $this->mKeyWord = '';
        $this->mBrandId = 0;
        $this->mHotId = 0;

        if (!empty(trim($param['keyword']))) {
            $keywod = trim(urldecode($param['keyword']));
            if ($this->check($keywod)) {
                $this->mKeyWord = trim(urldecode($param['keyword']));
                $helper = new history_helper();
                $helper->add_word($this->mKeyWord);
            }
        }
        if (intval($param['brand_id']) > 0) {
            $this->mBrandId = intval($param['brand_id']);
        }
        if (!empty(trim($param['hot_id']))) {
            $this->mHotId = intval($param['hot_id']);
        }
    }

    public function format()
    {
        if (empty($this->mKeyWord) && $this->mBrandId == 0 && $this->mHotId == 0) {
            return false;
        } else {
            $result = [];
            $result['keyword'] = $this->mKeyWord;
            $result['brand_id'] = $this->mBrandId;
            $result['hot_id'] = $this->mHotId;

            return $result;
        }
    }

    public function brand_id()
    {
        return $this->mBrandId;
    }

    private function mb_str_split($string)
    {
        return preg_split('/(?<!^)(?!$)/u', $string);
    }

    private function check($keyword)
    {
        $words = [];
        foreach ($this->mb_str_split($keyword) as $word) {
            if (search\filter::filter($word)) {
                $words[] = $word;
            }
        }
        if (empty($words)) {
            return false;
        } else {
            return true;
        }
    }
}