<?php

/**
 * Created by PhpStorm.
 * User: Steven
 * Date: 2016/8/12
 * Time: 14:21
 */
class commonUtils
{
    static function create($array)
    {
        $xml = "";
        foreach ($array as $k => $v) {
            $xml .= "<" . $k . ">";
            if (is_array($v)) {
                $a = self::create($v);
                $xml .= $a . "</" . $k . ">";
            } else {
                $xml .= $v . "</" . $k . ">";
            }
        }
        return $xml;
    }

    static function array_to_xml($array)
    {
        $xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
        $xml = $xml . self::create($array);//递归
        return $xml;

    }

    //发送get参数（链接，参数数组）
    static function send_get($url, $get_data)
    {
        $url_param = http_build_query($get_data);
        $result = file_get_contents($url . "?{$url_param}");
        return $result;
    }

    //将xml转换为数组
    static function xml_to_array($xml)
    {
        $ob = simplexml_load_string($xml);
        $json = json_encode($ob);
        $array = json_decode($json, true);
        return $array;
    }

    //发送post请求（xml）
    static function xml_post_request($url, $xmlData)
    {
        $header[] = "Content-type: text/xml";        //定义content-type为xml,注意是数组
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $xmlData);
        $response = curl_exec($ch);
        if (curl_errno($ch)) {
            print curl_error($ch);
        }
        curl_close($ch);
        return $response;
    }

    /**
     * PHP发送Json对象数据
     *
     * @param $url 请求url
     * @param $jsonStr 发送的json字符串
     * @return array
     */
    static function http_post_json($url, $jsonStr)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonStr);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                'Content-Type: application/json; charset=utf-8',
                'Content-Length: ' . strlen($jsonStr)
            )
        );
        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

        return array($httpCode, $response);
    }

    /**
     * PHP发送xml数据
     *
     * @param $url 请求url
     * @param $xmlStr 发送的xml
     * @return array
     */
    static function http_post_xml($url, $xmlStr)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $xmlStr);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: text/xml; charset=utf-8'));
        $response = curl_exec($ch);
        if ($errno = curl_errno($ch)) {
            throw new Exception ('Curl Error(' . $errno . '):' . curl_error($ch));
        }
        curl_close($ch); // 关闭URL请求
        return $response; // 返回获取的数据
    }

    /**
     * PHP发送数组
     *
     * @param $url 请求url
     * @param $param 发送的数组
     * @return array
     */
    static function httpsPost($url, $param = array())
    {
        $ch = curl_init(); // 初始化一个 cURL 对象
        curl_setopt($ch, CURLOPT_URL, $url); // 设置需要抓取的URL
        curl_setopt($ch, CURLOPT_HEADER, 0); // // 设置header
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // 设置cURL 参数，要求结果保存到字符串中还是输出到屏幕上。
        // 如果你想PHP去做一个正规的HTTP POST，设置这个选项为一个非零值。这个POST是普通的 application/x-www-from-urlencoded 类型，多数被HTML表单使用。
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($param)); // 传递一个作为HTTP “POST”操作的所有数据的字符串。//http_build_query:生成 URL-encode 之后的请求字符串
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            'Content-type:application/x-www-form-urlencoded;charset=utf-8'
        ));
        $rtn = curl_exec($ch); // 运行cURL，请求网页
        if ($errno = curl_errno($ch)) {
            throw new Exception ('Curl Error(' . $errno . '):' . curl_error($ch));
        }
        curl_close($ch); // 关闭URL请求
        return $rtn; // 返回获取的数据
    }

    static function base_xml_encode($data, $encoding = 'utf-8', $root = "root")
    {
        $xml = "<?xml version=\"1.0\" encoding=\"$encoding\"?>\n";
        $xml .= "<$root>";
        $xml .= self::data_to_xml($data);
        $xml .= "</$root>";
        return $xml;
    }

    //接受xml数据并转化成数组
    static function getRequestBean()
    {
        $bean = simplexml_load_string(file_get_contents('php://input')); // simplexml_load_string() 函数把 XML 字符串载入对象中。如果失败，则返回 false。
        $request = array();
        foreach ($bean as $key => $value) {
            $request [( string )$key] = ( string )$value;
        }
        return $request;
    }

    //接受json数据并转化成数组
    static function getJsonData()
    {
        $bean = file_get_contents('php://input');
        $result = json_decode($bean, true);
        return $result;
    }

    //组装XML
    static function data_to_xml($data)
    {
        if (is_object($data)) {
            $data = get_object_vars($data);
        }
        $xml = '';
        foreach ($data as $key => $val) {
            if (is_null($val)) {
                $xml .= "<$key/>\n";
            } else {
                is_numeric($key) && $key = "item";
                $xml .= "<$key>";
                $xml .= (is_array($val) || is_object($val)) ? self::data_to_xml($val) : $val;
                list($key,) = explode(' ', $key);
                $xml .= "</$key>";
            }
        }
        return $xml;
    }

    /**
     * 日志方法
     * @param $log
     */
    static function writeLog($log)
    {
        $dir = __DIR__ . "/../Log/";
        if (!is_dir($dir)) {
            mkdir($dir);
        }
        $filename = $dir . date("Y-m-d") . ".log";
        file_put_contents($filename, date("Y-m-d H:i:s") . "\t" . $log . PHP_EOL, FILE_APPEND);
    }

    /**
     * 签名验证函数
     * @param $param   需要加密的字符串
     * @param $sign     第三方已经机密好的用来比对的字串
     * @return bool
     */
    static function ValidateSign($param, $sign)
    {
        if (md5($param) == $sign) {
            return true;
        } else {
            return false;
        }
    }
}