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這篇文章主要介紹微信開發(fā)之如何快速查詢城市天氣,文中介紹的非常詳細,具有一定的參考價值,感興趣的小伙伴們一定要看完!

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微信http://www.php.cn/php/php-tp-demand.html" target="_blank">查詢城市天氣,首先,你需要找到一個獲取天氣的API,此處,用的是百度的apistore,可以去百度申請和使用API。
登錄百度賬號,并用手機發(fā)送請求獲取apikey。有了apikey,可以按照它的示例來請求城市天氣了。(可以按照城市中文名,拼音,城市編號等來查詢)
你可以現(xiàn)在本地做測試,請求完成之后,再放到自己的域名空間的腳本里。
測試的腳本例如:(注意apikey填寫自己申請的)
header('Content-type:text/html;charset=UTF-8');
$ch = curl_init();
$url = 'http://apis.baidu.com/apistore/weatherservice/cityname?cityname=上海';
$header = array(
'apikey: ',//你的apikey
);
// 添加apikey到header
curl_setopt($ch, CURLOPT_HTTPHEADER , $header);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// 執(zhí)行HTTP請求
curl_setopt($ch , CURLOPT_URL , $url);
$res = curl_exec($ch);
$res = json_decode($res, true);
echo "";
print_r($res);
echo "
";
$contentStr = "";
foreach($res as $k=>$v){
if($k == "retData"){
$contentStr = "城市:" . $v['city'] . "\n";
$contentStr .= "日期:" . $v['date'] . "\n";
$contentStr .= "天氣:" . $v['weather'] ."\n";
$contentStr .= "平均氣溫:" . $v['temp'] . "℃\n";
$contentStr .= "最低氣溫:" . $v['l_tmp'] ."℃\n";
$contentStr .= "最高氣溫:" . $v['h_tmp'] . "℃\n";
$contentStr .= "風力:" . $v['WS'] . "\n";
$contentStr .= "風向:" . $v['WD'] . "\n";
$contentStr .= "日出時間:" . $v['sunrise'] . "\n";
$contentStr .= "日落時間:" . $v['sunset'] . "\n";
$contentStr .= "經(jīng)度:" . $v['longitude'] . "\n";
$contentStr .= "緯度:" . $v['latitude'];
}
}
echo $contentStr;如果你填寫了自己的apikey,那么應該能獲取到所請求的天氣了:
如果能返回正常的數(shù)據(jù)了,那么就可以放到你的域名空間里了。(公眾平臺里開發(fā)者中心填寫的url,該url有連接微信接口等功能)
public function responseMsg(){
//get post data, May be due to the different environments
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; //接收微信發(fā)來的XML數(shù)據(jù)
//extract post data
if(!empty($postStr)){
//解析post來的XML為一個對象$postObj
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName; //請求消息的用戶
$toUsername = $postObj->ToUserName; //"我"的公眾號id
$keyword = trim($postObj->Content); //用戶發(fā)送的消息內容
$time = time(); //時間戳
$msgtype = 'text'; //消息類型:文本
$textTpl = "
%s
";
if($postObj->MsgType == 'event'){ //如果XML信息里消息類型為event
if($postObj->Event == 'subscribe'){ //如果是訂閱事件
$contentStr = "歡迎訂閱misaka去年夏天!\n更多精彩內容:http://blog.csdn.net/misakaqunianxiatian";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgtype, $contentStr);
echo $resultStr;
exit();
}
}
$which = mb_substr($keyword, 0, 2, 'UTF-8');//獲取要返回什么樣的信息
if($which== "翻譯"){ //如果要進行翻譯
//調用有道翻譯API進行翻譯
}elseif($which == "天氣"){
$wea = $which;
$city = str_replace($wea, "", $keyword);
$ch = curl_init();
$url = 'http://apis.baidu.com/apistore/weatherservice/cityname?cityname=' . $city;
$header = array('apikey: '); //此處的apikey使用自己申請的apikey,填在冒號之后
// 添加apikey到header
curl_setopt($ch, CURLOPT_HTTPHEADER , $header);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// 執(zhí)行HTTP請求
curl_setopt($ch , CURLOPT_URL , $url);
$res = curl_exec($ch);
$res = json_decode($res, true);
$contentStr = "";
foreach($res as $k=>$v){
if($k == "retData"){
$contentStr = "城市:" . $v['city'] . "\n";
$contentStr .= "日期:" . $v['date'] . "\n";
$contentStr .= "天氣:" . $v['weather'] ."\n";
$contentStr .= "平均氣溫:" . $v['temp'] . "℃\n";
$contentStr .= "最低氣溫:" . $v['l_tmp'] ."℃\n";
$contentStr .= "最高氣溫:" . $v['h_tmp'] . "℃\n";
$contentStr .= "風力:" . $v['WS'] . "\n";
$contentStr .= "風向:" . $v['WD'] . "\n";
$contentStr .= "日出時間:" . $v['sunrise'] . "\n";
$contentStr .= "日落時間:" . $v['sunset'] . "\n";
$contentStr .= "經(jīng)度:" . $v['longitude'] . "\n";
$contentStr .= "緯度:" . $v['latitude'];
}
}
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgtype, $contentStr);
echo $resultStr;
exit();
}else{
$contentStr = "輸入翻譯XXX可以進行翻譯(=?ω?=)\n\n輸入天氣XX可以查詢城市天氣";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgtype, $contentStr);
echo $resultStr;
exit();
}完成之后(別忘了填寫apikey),你的訂閱號里,輸入天氣上海,那么應該能查到上海當天的天氣了。
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