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微信公众平台开发（67）百度百科_PHP教程

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Jul 20, 2016 am 11:16 AM

http企业作者地址工作室平台开发微信模式百度百科

微信公众平台开发微信公众平台开发模式企业微信公众平台百度百科
作者：方倍工作室
地址：http://www.cnblogs.com/txw1958/p/weixin67-baike.html

百度百科是一部内容开放、自由的网络百科全书，旨在创造一个涵盖所有领域知识、服务所有互联网用户的中文知识性百科全书。百度百科以平等、协作、分享、自由的互联网精神，提倡网络面前人人平等，所有人共同协作编写百科全书，让知识在一定的技术规则和文化脉络下得以不断组合和拓展。

百度百科

为用户提供一个创造性的网络平台，强调用户的参与和奉献精神，充分调动互联网所有用户的力量，汇聚上亿用户的头脑智慧，积极交流和分享，同时实现与搜索引擎的完美结合，从各个不同层次上满足用户对信息的需求。百度百科所提供的，是一个互联网所有用户均能平等地浏览、创造、完善内容的平台。所有中文互联网用户在百度百科都能找到自己想要的全面、准确、客观的定义性信息

从百度百科抓取内容

<?<span php

</span><span //</span><span echo getbaike('马化腾'); //输出 http://baike.baidu.com/view/1466380.htm</span>

<span function</span> getEncyclopediaInfo(<span $name</span><span ){
    </span><span $name_gbk</span> = <span iconv</span>('utf-8', 'gbk', <span $name</span>); <span //</span><span 将字符转换成GBK编码，若文件为GBK编码可去掉本行</span>
    <span $encode</span> = <span urlencode</span>(<span $name_gbk</span>); <span //</span><span 对字符进行URL编码</span>
    <span $url</span> = 'http://baike.baidu.com/list-php/dispose/searchword.php?word=' .<span $encode</span>. '&pic=1'<span ;
    </span><span $get_contents</span> = httpGetRequest_baike(<span $url</span>); <span //</span><span 获取跳转页内容</span>
    <span $get_contents_gbk</span> = <span iconv</span>('gbk', 'utf-8', <span $get_contents</span>); <span //</span><span 将获取的网页转换成UTF-8编码，若文件为GBK编码可去掉本行</span>
    <span preg_match</span>("/URL=(\S+)'>/s", <span $get_contents_gbk</span>, <span $out</span>); <span //</span><span 获取跳转后URL</span>
    <span $real_link</span> = 'http://baike.baidu.com' .<span $out</span>[1<span ];

    </span><span $get_contents2</span> = httpGetRequest_baike(<span $real_link</span>); <span //</span><span 获取跳转页内容</span>
    <span preg_match</span>('#"Description"\scontent="(.+?)"\s\/\>#is', <span $get_contents2</span>, <span $matchresult</span><span );
    </span><span if</span> (<span isset</span>(<span $matchresult</span>[1]) && <span $matchresult</span>[1] != ""<span ){
        </span><span return</span> <span $matchresult</span>[1<span ];
    }</span><span else</span><span {
        </span><span return</span> "抱歉，没有找到与&ldquo;".<span $name</span>."&rdquo;相关的百科结果。"<span ;
    }
}


</span><span function</span> httpGetRequest_baike(<span $url</span><span )
{
    </span><span $headers</span> = <span array</span><span (
        </span>"User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20100101 Firefox/14.0.1",
        "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
        "Accept-Language: en-us,en;q=0.5",
        "Referer: http://www.baidu.com/"<span 
    );
    </span><span $ch</span> =<span  curl_init();
    curl_setopt(</span><span $ch</span>, CURLOPT_URL, <span $url</span><span );
    curl_setopt(</span><span $ch</span>, CURLOPT_RETURNTRANSFER, 1<span );
    curl_setopt(</span><span $ch</span>, CURLOPT_HTTPHEADER, <span $headers</span><span );
    </span><span $output</span> = curl_exec(<span $ch</span><span );
    curl_close(</span><span $ch</span><span );

    </span><span if</span> (<span $output</span> === <span FALSE</span><span ){
        </span><span return</span> "cURL Error: ". curl_error(<span $ch</span><span );
    }
    </span><span return</span> <span $output</span><span ;
}
</span>?>

微信中调用

<?<span php

</span><span define</span>("TOKEN", "weixin"<span );

</span><span $wechatObj</span> = <span new</span><span  wechatCallbackapiTest();
</span><span $wechatObj</span>-><span responseMsg();

</span><span class</span><span  wechatCallbackapiTest
{
    </span><span public</span> <span function</span><span  valid()
    {
        </span><span $echoStr</span> = <span $_GET</span>["echostr"<span ];
        </span><span //</span><span valid signature , option</span>
        <span if</span>(<span $this</span>-><span checkSignature()){
            </span><span echo</span> <span $echoStr</span><span ;
            </span><span exit</span><span ;
        }
    }

    </span><span private</span> <span function</span><span  checkSignature()
    {
        </span><span $signature</span> = <span $_GET</span>["signature"<span ];
        </span><span $timestamp</span> = <span $_GET</span>["timestamp"<span ];
        </span><span $nonce</span> = <span $_GET</span>["nonce"<span ];

        </span><span $token</span> =<span  TOKEN;
        </span><span $tmpArr</span> = <span array</span>(<span $token</span>, <span $timestamp</span>, <span $nonce</span><span );
        </span><span sort</span>(<span $tmpArr</span><span );
        </span><span $tmpStr</span> = <span implode</span>( <span $tmpArr</span><span  );
        </span><span $tmpStr</span> = <span sha1</span>( <span $tmpStr</span><span  );

        </span><span if</span>( <span $tmpStr</span> == <span $signature</span><span  ){
            </span><span return</span> <span true</span><span ;
        }</span><span else</span><span {
            </span><span return</span> <span false</span><span ;
        }
    }

    </span><span public</span> <span function</span><span  responseMsg()
    {
        </span><span //</span><span get post data, May be due to the different environments</span>
        <span $postStr</span> = <span $GLOBALS</span>["HTTP_RAW_POST_DATA"<span ];
        logger(</span>"R ".<span $postStr</span><span );
        </span><span //</span><span extract post data</span>
        <span if</span> (!<span empty</span>(<span $postStr</span><span )){
            </span><span $postObj</span> = <span simplexml_load_string</span>(<span $postStr</span>, 'SimpleXMLElement',<span  LIBXML_NOCDATA);
            </span><span $RX_TYPE</span> = <span trim</span>(<span $postObj</span>-><span MsgType);

            </span><span switch</span> (<span $RX_TYPE</span><span )
            {
                </span><span case</span> "text":
                    <span $resultStr</span> = <span $this</span>->receiveText(<span $postObj</span><span );
                    </span><span break</span><span ;
                </span><span case</span> "event":
                    <span $resultStr</span> = <span $this</span>->receiveEvent(<span $postObj</span><span );
                    </span><span break</span><span ;
                </span><span default</span>:
                    <span $resultStr</span> = "unknow msg type: ".<span $RX_TYPE</span><span ;
                    </span><span break</span><span ;
            }
            logger(</span>"T ".<span $resultStr</span><span );
            </span><span echo</span> <span $resultStr</span><span ;
        }</span><span else</span><span  {
            </span><span echo</span> ""<span ;
            </span><span exit</span><span ;
        }
    }

    </span><span private</span> <span function</span> receiveText(<span $object</span><span )
    {
        </span><span $funcFlag</span> = 0<span ;
        </span><span $keyword</span> = <span trim</span>(<span $object</span>-><span Content);
        </span><span $resultStr</span> = ""<span ;
        </span><span $contentStr</span> = ""<span ;

        </span><span include</span>('baike.php'<span );
        </span><span $contentStr</span> = getEncyclopediaInfo(<span $keyword</span><span );
        </span><span $resultStr</span> = <span $this</span>->transmitText(<span $object</span>, <span $contentStr</span>, <span $funcFlag</span><span );
        </span><span return</span> <span $resultStr</span><span ;
    }

    </span><span private</span> <span function</span> receiveEvent(<span $object</span><span )
    {
        </span><span $contentStr</span> = ""<span ;
        </span><span switch</span> (<span $object</span>-><span Event)
        {
            </span><span case</span> "subscribe":
                <span $contentStr</span> = "欢迎关注"<span ;
        }
        </span><span $resultStr</span> = <span $this</span>->transmitText(<span $object</span>, <span $contentStr</span><span );
        </span><span return</span> <span $resultStr</span><span ;
    }

    </span><span private</span> <span function</span> transmitText(<span $object</span>, <span $content</span>, <span $flag</span> = 0<span )
    {
        </span><span $textTpl</span> = "<span <xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
<FuncFlag>%d</FuncFlag>
</xml></span>"<span ;
        </span><span $resultStr</span> = <span sprintf</span>(<span $textTpl</span>, <span $object</span>->FromUserName, <span $object</span>->ToUserName, <span time</span>(), <span $content</span>, <span $flag</span><span );
        </span><span return</span> <span $resultStr</span><span ;
    }

}

</span><span function</span> logger(<span $log_content</span><span )
{

}
</span>?>

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