微信公众号开发之（48）正则表达式

• curl_setopt($ch ,CURLOPT_RETURNTRANSFER, 1); //作为数据流
• preg_match 正则表达式 只匹配一次
• preg_match_all 正则表达式 匹配全部
• 二维数组

仅提供思路，运行不出来

关键代码如下：

        $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
                $fromUsername = $postObj->FromUserName;
                $toUsername = $postObj->ToUserName;
                $type = $postObj->MsgType;
                $customevent = $postObj->Event;
                $latitude  = $postObj->Location_X;
                $longitude = $postObj->Location_Y;
                $keyword = trim($postObj->Content);
                $time = time();

               $textTpl = "<xml>
                            <ToUserName><![CDATA[%s]]></ToUserName>
                            <FromUserName><![CDATA[%s]]></FromUserName>
                            <CreateTime>%s</CreateTime>
                            <MsgType>text</MsgType>
                            <Content><![CDATA[%s]]></Content>
                            <FuncFlag>0</FuncFlag>
                            </xml>";   
                $post="queryType=flightNum&flightNum={$keyword}";  //提交内容
                $url = "http://eb.csair.com/flightQuery/fltQueryETicketResultN.jsp"; //查询地址 
                $ch = curl_init();//新建curl
                curl_setopt ($ch, CURLOPT_REFERER, "http://www.csair.com/ "); //模拟来源
                curl_setopt($ch, CURLOPT_URL, $url);//url  
                curl_setopt($ch, CURLOPT_POST, 1);  //post
                curl_setopt($ch, CURLOPT_POSTFIELDS, $post);//post内容  
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//作为数据流
                $b=curl_exec($ch); //输出   
                $match="#<td><strong>(.*)</strong></td>#";//正则表达
                preg_match_all($match,$b,$c);//全部匹配
                $contentStr="实际起飞时间".$c[1][0]."实际达到时间".$c[1][1];
                curl_close($ch);               


                $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time,  $contentStr);
                echo $resultStr;

index.php整体代码如下：

<?php
/**
  * wechat php test
  */

//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
//$wechatObj->valid();
$wechatObj->responseMsg();
class wechatCallbackapiTest
{
    public function valid()
    {
        $echoStr = $_GET["echostr"];

        //valid signature , option
        if($this->checkSignature()){
            echo $echoStr;
            exit;
        }
    }

    public function responseMsg()
    {
        //get post data, May be due to the different environments
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

        //extract post data
        if (!empty($postStr)){

                $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
                $fromUsername = $postObj->FromUserName;
                $toUsername = $postObj->ToUserName;
                $type = $postObj->MsgType;
                $customevent = $postObj->Event;
                $latitude  = $postObj->Location_X;
                $longitude = $postObj->Location_Y;
                $keyword = trim($postObj->Content);
                $time = time();

               $textTpl = "<xml>
                            <ToUserName><![CDATA[%s]]></ToUserName>
                            <FromUserName><![CDATA[%s]]></FromUserName>
                            <CreateTime>%s</CreateTime>
                            <MsgType>text</MsgType>
                            <Content><![CDATA[%s]]></Content>
                            <FuncFlag>0</FuncFlag>
                            </xml>";   
                $post="queryType=flightNum&flightNum={$keyword}";  //提交内容
                $url = "http://eb.csair.com/flightQuery/fltQueryETicketResultN.jsp"; //查询地址 
                $ch = curl_init();//新建curl
                curl_setopt ($ch, CURLOPT_REFERER, "http://www.csair.com/ "); //模拟来源
                curl_setopt($ch, CURLOPT_URL, $url);//url  
                curl_setopt($ch, CURLOPT_POST, 1);  //post
                curl_setopt($ch, CURLOPT_POSTFIELDS, $post);//post内容  
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//作为数据流
                $b=curl_exec($ch); //输出   
                $match="#<td><strong>(.*)</strong></td>#";//正则表达
                preg_match_all($match,$b,$c);//全部匹配
                $contentStr="实际起飞时间".$c[1][0]."实际达到时间".$c[1][1];
                curl_close($ch);               


                $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time,  $contentStr);
                echo $resultStr;

        }
    }




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

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

        if( $tmpStr == $signature ){
            return true;
        }else{
            return false;
        }
    }
}

?>

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