如何编写基于PHP的水质查询API调用示例代码？

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php代码描述：基于PHP的水质查询API调用示例 + 关联数据：水质量 + 接口地址：http://www.juhe.cn/docs/api/id/34 your_api_key, // 替换为你的API密钥 city=> city_name, // 替换为你想要查询的城市 area=> area_name, // 替换为你想要查询的区域];

// 初始化curl$curl=curl_init();curl_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_POST, true);curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($param));curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);curl_setopt($curl, CURLOPT_HEADER, false);

// 执行API调用$result=curl_exec($curl);curl_close($curl);

// 解析结果$data=json_decode($result, true);

// 输出结果echo 水质量：.$data['result']['water_quality'];?>

代码描述：基于php的水质查询api调用代码实例
关联数据：水质量
接口地址：www.juhe.cn/docs/api/id/34

<!--?php // +---------------------------------------------------------------------- // | JuhePHP [ NO ZUO NO DIE ] // +---------------------------------------------------------------------- // | Copyright (c) 2010-2015 juhe.cn All rights reserved. // +---------------------------------------------------------------------- // | Author: Juhedata <info@juhe.cn--> // +---------------------------------------------------------------------- //---------------------------------- // 水质量调用示例代码 － 聚合数据 // 在线接口文档：www.juhe.cn/docs/34 //---------------------------------- header('Content-type:text/html;charset=utf-8'); //配置您申请的appkey $appkey = "*********************"; //************1.流域查询水质量************ $url = "web.juhe.cn:8080/environment/water/river"; $params = array( "river" => "",//流域名称，查询流域为“长江流域”，则输入“长江流域” "key" => $appkey,//APP Key ); $paramstring = web.juhe.cn:8080/environment/water/state"; $params = array( "state" => "",//监测站点名称，查询站点为“湖北宜昌南津关”，则输入“湖北宜昌南津关” "key" => $appkey,//APP Key ); $paramstring = web.juhe.cn:8080/environment/water/stateList"; $params = array( "key" => $appkey,//应用APPKEY ); $paramstring = http_build_query($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; }