<?php 
	/** 公用函数 */

    //导出数据
    //导出数据
    function exportExcel($expTitle, $expCellName, $expTableData)
    {
        $xlsTitle = iconv('utf-8', 'gb2312', $expTitle);//文件名称
        $fileName = $expTitle.date('_YmdHis');//or $xlsTitle 文件名称可根据自己情况设定
        $cellNum = count($expCellName);
        $dataNum = count($expTableData);

        // vendor("PHPExcel.PHPExcel");

        $objPHPExcel = new PHPExcel(); 
        include_once(__DIR__."/../../vendor/PHPExcel/PHPExcel/IOFactory.php");
        set_time_limit(0);//不对php(主要是写数据)执行时间做限制
        ini_set("memory_limit", "1024M");//设置内存(防爆内存)
        $cacheMethod = \PHPExcel_CachedObjectStorageFactory::cache_in_memory_serialized;//设置缓存策略(减少内存占用)
        //判断缓存策略是否可用
        if (!\PHPExcel_Settings::setCacheStorageMethod($cacheMethod)) {
            die($cacheMethod . " 缓存方法不可用" . EOL);
        }

        $cellName = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','AA','AB','AC','AD','AE','AF','AG','AH','AI','AJ','AK','AL','AM','AN','AO','AP','AQ','AR','AS','AT','AU','AV','AW','AX','AY','AZ');
        //显示导出名称和导出时间
        // $objPHPExcel->getActiveSheet(0)->mergeCells('A1:'.$cellName[$cellNum-1].'1');//合并单元格
        // $objPHPExcel->setActiveSheetIndex(0)->setCellValue('A1', $expTitle.'  导出时间:'.date('Y-m-d H:i:s'));
        for($i=0;$i<$cellNum;$i++){
            $objPHPExcel->setActiveSheetIndex(0)->setCellValue($cellName[$i].'1', $expCellName[$i][1]);
        }
        // Miscellaneous glyphs, UTF-8
        for($i=0;$i<$dataNum;$i++){
            for($j=0;$j<$cellNum;$j++){
                $objPHPExcel->getActiveSheet(0)->setCellValue($cellName[$j].($i+2), $expTableData[$i][$expCellName[$j][0]]);
            }
        }

        header('pragma:public');
        header('Content-type:application/vnd.ms-excel;charset=utf-8;name="'.$xlsTitle.'.csv"');
        header("Content-Disposition:attachment;filename=$fileName.csv");//attachment新窗口打印inline本窗口打印
        //输出bom
        print(chr(0xEF).chr(0xBB).chr(0xBF));
        $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'CSV');
        $objWriter->save('php://output');
        exit;
    }

    // curl 
	function curlApi( $url , $params = array(), $method = 'GET' , $multi = false, $extheaders = array())
	{
        if(!function_exists('curl_init')) exit('Need to open the curl extension');
        $method = strtoupper($method);
        $ci = curl_init();
        curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, 3);
        curl_setopt($ci, CURLOPT_TIMEOUT, 3);
        curl_setopt($ci, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ci, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ci, CURLOPT_HEADER, false);
        $headers = (array)$extheaders;
        switch ($method)
        {
            case 'POST':
                curl_setopt($ci, CURLOPT_POST, TRUE);
                if (!empty($params))
                {
                    if($multi)
                    {
                        foreach($multi as $key => $file)
                        {
                            $params[$key] = '@' . $file;
                        }
                        curl_setopt($ci, CURLOPT_POSTFIELDS, $params);
                        $headers[] = 'Expect: ';
                    }
                    else
                    {
                        curl_setopt($ci, CURLOPT_POSTFIELDS, http_build_query($params));
                    }
                }
                break;
            case 'DELETE':
            case 'GET':
                $method == 'DELETE' && curl_setopt($ci, CURLOPT_CUSTOMREQUEST, 'DELETE');
                if (!empty($params))
                {
                    $url = $url . (strpos($url, '?') ? '&' : '?')
                        . (is_array($params) ? http_build_query($params) : $params);
                }
                break;
        }
        curl_setopt($ci, CURLINFO_HEADER_OUT, TRUE );
        curl_setopt($ci, CURLOPT_URL, $url);
        if($headers)
        {
            curl_setopt($ci, CURLOPT_HTTPHEADER, $headers );
        }

        $response = curl_exec($ci);
        curl_close ($ci);
        return $response;
    }

    /**
     * webpower CURL 请求
     * @param $url
     * @param $content
     * @param string $method
     * @return mixed
     */
    function webpower_curl($url, $content, $method= 'post'){
        //username and password
        $username = "xb@ichunt.com";   //短信平台的账号
        $password = "Webp0wer";        //短信平台的密码

        $data_string = json_encode($content);
        $header = array(
            "Content-Type: application/json",
            "X-HTTP-Method-Override: $method",
            "Authorization: Basic " . base64_encode($username . ":" . $password)
        );

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_FAILONERROR, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);

        curl_setopt($ch,CURLOPT_HTTPHEADER, $header);
        $response = curl_exec($ch);
        return $response ? $response : curl_error($ch);
    }

    /**
     * 接口服务时加密方式
     * @param  [type] $data      [description]
     * @param  [type] $timestamp [description]
     * @param  [type] $key       [description]
     * @return [type]            [description]
     */
    function service_token($data, $timestamp, $key = null)
    {
        $key = is_null($key) ? Config('website.SERVICE_KEY') : $key;
        $token = md5($data.$timestamp.$key);
        return $token;
    }

    /**
     * 获取客户端IP地址
     * @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字
     * @param boolean $adv 是否进行高级模式获取（有可能被伪装）
     * @return mixed
     */
    function get_client_ip($type = 0, $adv = false)
    {
        $type      = $type ? 1 : 0;
        static $ip = null;
        if (null !== $ip) {
            return $ip[$type];
        }

        if ($adv) {
            if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
                $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
                $pos = array_search('unknown', $arr);
                if (false !== $pos) {
                    unset($arr[$pos]);
                }

                $ip = trim($arr[0]);
            } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
                $ip = $_SERVER['HTTP_CLIENT_IP'];
            } elseif (isset($_SERVER['REMOTE_ADDR'])) {
                $ip = $_SERVER['REMOTE_ADDR'];
            }
        } elseif (isset($_SERVER['REMOTE_ADDR'])) {
            $ip = $_SERVER['REMOTE_ADDR'];
        }
        // IP地址合法验证
        $long = sprintf("%u", ip2long($ip));
        $ip   = $long ? array($ip, $long) : array('0.0.0.0', 0);
        return $ip[$type];
    }