WeChat public platform development (67) Baidu Encyclopedia_PHP tutorial

WeChat public platform development WeChat public platform development model Enterprise WeChat public platform Baidu Encyclopedia
Author: Fangbei Studio
Address: http://www.cnblogs.com/txw1958/p/weixin67-baike.html

Baidu Encyclopedia is an open and free online encyclopedia, aiming to create a Chinese knowledge encyclopedia covering all fields of knowledge and serving all Internet users. Based on the Internet spirit of equality, collaboration, sharing, and freedom, Baidu Encyclopedia advocates that everyone is equal before the Internet, and everyone collaborates to write the encyclopedia, so that knowledge can be continuously combined and expanded under certain technical rules and cultural context.

Baidu Encyclopedia

Provide users with a creative network platform, emphasize user participation and dedication, fully mobilize the power of all Internet users, bring together the brains and wisdom of hundreds of millions of users, actively communicate and share, and at the same time achieve perfect integration with search engines, from various different Satisfy users’ information needs at different levels. What Baidu Encyclopedia provides is a platform where all Internet users can equally browse, create, and improve content. All Chinese Internet users can find the comprehensive, accurate and objective definitional information they want on Baidu Encyclopedia

Grab content from Baidu Encyclopedia

<?<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>?>

Call in WeChat

<?<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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