php查詢城市空氣品質的方法:1、開通空氣品質API介面;2、建立php範例檔案;3、設定檔編碼為「utf-8」;4、設定申請的appkey;5、請求介面URL;6、透過「$params = ['city' => '...', 'key' => '...'];」方式請求城市空氣品質相關參數資訊即可。
本教學操作環境:windows7系統、PHP8.1版、Dell G3電腦。
php如何查詢城市空氣品質?
1、開通空氣品質API介面:
#透過https://www.juhe.cn/docs /api/id/33?s=cpphpcn
註冊及開通
介面說明:
2、基於php的空氣品質介面呼叫範例
php程式碼如下:// 空气质量调用示例代码 header('Content-type:text/html;charset=utf-8'); //配置您申请的appkey $appkey = "*********************"; //************1.城市空气质量************ $url = "http://web.juhe.cn:8080/environment/air/cityair"; $params = array( "city" => "",//城市名称的中文名称或拼音,如:上海 或 shanghai "key" => $appkey,//APP Key ); $paramstring = http_build_query($params); $content = juhecurl($url,$paramstring); $result = json_decode($content,true); if($result){ if($result['error_code']=='0'){ print_r($result); }else{ echo $result['error_code'].":".$result['reason']; } }else{ echo "请求失败"; } //************************************************** //************2.城市空气PM2.5指数************ $url = "http://web.juhe.cn:8080/environment/air/pm"; $params = array( "city" => "",//城市名称的中文名称或拼音,如:上海 或 shanghai "key" => $appkey,//APP Key ); $paramstring = http_build_query($params); $content = juhecurl($url,$paramstring); $result = json_decode($content,true); if($result){ if($result['error_code']=='0'){ print_r($result); }else{ echo $result['error_code'].":".$result['reason']; } }else{ echo "请求失败"; } //************************************************** //************3.城市空气质量-城市列表************ $url = "http://web.juhe.cn:8080/environment/air/airCities"; $params = array( "key" => $appkey,//APP Key ); $paramstring = http_build_query($params); $content = juhecurl($url,$paramstring); $result = json_decode($content,true); if($result){ if($result['error_code']=='0'){ print_r($result); }else{ echo $result['error_code'].":".$result['reason']; } }else{ echo "请求失败"; } //************************************************** //************4.城市空气PM2.5指数-城市列表************ $url = "http://web.juhe.cn:8080/environment/air/pmCities"; $params = array( "key" => $appkey,//APP Key ); $paramstring = http_build_query($params); $content = juhecurl($url,$paramstring); $result = json_decode($content,true); if($result){ if($result['error_code']=='0'){ print_r($result); }else{ echo $result['error_code'].":".$result['reason']; } }else{ echo "请求失败"; } //************************************************** //************5.城市辐射指数************ $url = "http://web.juhe.cn:8080/environment/air/radia"; $params = array( "city" => "",//城市名称的中文拼音,查询城市为“上海”,则输入:上海 "num" => "",//查询页码数,不写默认为第一页。 "key" => $appkey,//APP Key ); $paramstring = http_build_query($params); $content = juhecurl($url,$paramstring); $result = json_decode($content,true); if($result){ if($result['error_code']=='0'){ print_r($result); }else{ echo $result['error_code'].":".$result['reason']; } }else{ echo "请求失败"; } //************************************************** /** * 请求接口返回内容 * @param string $url [请求的URL地址] * @param string $params [请求的参数] * @param int $ipost [是否采用POST形式] * @return string */ function juhecurl($url,$params=false,$ispost=0){ $httpInfo = array(); $ch = curl_init(); curl_setopt( $ch, CURLOPT_HTTP_VERSION , CURL_HTTP_VERSION_1_1 ); curl_setopt( $ch, CURLOPT_USERAGENT , 'JuheData' ); curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT , 60 ); curl_setopt( $ch, CURLOPT_TIMEOUT , 60); curl_setopt( $ch, CURLOPT_RETURNTRANSFER , true ); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); if( $ispost ) { curl_setopt( $ch , CURLOPT_POST , true ); curl_setopt( $ch , CURLOPT_POSTFIELDS , $params ); curl_setopt( $ch , CURLOPT_URL , $url ); } else { if($params){ curl_setopt( $ch , CURLOPT_URL , $url.'?'.$params ); }else{ curl_setopt( $ch , CURLOPT_URL , $url); } } $response = curl_exec( $ch ); if ($response === FALSE) { //echo "cURL Error: " . curl_error($ch); return false; } $httpCode = curl_getinfo( $ch , CURLINFO_HTTP_CODE ); $httpInfo = array_merge( $httpInfo , curl_getinfo( $ch ) ); curl_close( $ch ); return $response; }推薦學習:《
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