<?php

namespace App\Library\lib;

class CsvLib
{
    /**
     * 【构造函数】
     *
     */
    public function __construct() {

    }

    /**
     * 导出csv
     * @param $data
     *
     * $data示例：
     * $data = [
     *     'xlsTitle' => [
     *         'RFID', '商品名称', '单位', '入仓时间', '进货价', '零售价', '状态'
     *      ],
     *      'xlsName' => '已贴标库存',
     *      'xlsList' => $xlsList
     *  ];
     *
     * $data['xlsTitle'] : 表头
     * $data['xlsName'] : 文件名称
     * $data['xlsList'] : 表数据
     */
    public static function export($data)
    {
        $xlsTitle = $data['xlsTitle'];
        $arrayKeys = array_keys($xlsTitle);
        $xlsName = $data['xlsName'];
        $xlsList = $data['xlsList'];
        //  头部
        $string = '';
        foreach ($xlsTitle as $key => $val) {
            $xlsTitle[$key] = iconv('utf-8', 'gb2312', $val);
        }
        $string .= implode(',', $xlsTitle) . "\n";

        //  内容
        foreach ($xlsList as $key => $value) {
            $exportData = [];
            foreach ($arrayKeys as $k) {
                $value = array_values($value);
                $exportData[$k] = addslashes(iconv('utf-8', 'GBK//IGNORE', str_replace(',', '， ', $value[$k])));
            }
            $string .= implode(',', $exportData) . "\n";
        }
        $filename = $xlsName . date('Y-m-d H:i:s') . '.csv';
        header("Content-type:text/csv");
        header("Content-Disposition:attachment;filename=" . $filename);
        header("Cache-Controller:must-revalidate,post-check=0,pre-check=0");
        header('Expires:0');
        echo $string;
    }


}