How to check weather forecast using PHP

Steps to query weather forecast in PHP: 1. Open the weather forecast interface service and obtain the interface request Key; 2. Call the interface API to make a request to query the city weather; 3. Get the returned weather-related information, the syntax is "$data = $result['result'];", you can adjust and modify the information according to the actual business logic and output it.

The operating environment of this tutorial: windows7 system, PHP version 8.1, DELL G3 computer

How to use PHP to check the weather forecast for the next few days ? The following article will talk to you about the free weather forecast interface query based on PHP. I hope it will be helpful to you.

1. Open the interface

#The free interface provided by the aggregated data used by the weather forecast interface service can be called 100 times per day for free. You can register and activate through https://www.juhe.cn/docs/api/id/73?s=cpphpcn.

2. Initiate city weather query through PHP

 '苏州', // 要查询的城市
    'key' => '您申请的接口调用Key'
];
$paramsString = http_build_query($params);

// 发起接口网络请求
$response = juheHttpRequest($apiUrl, $paramsString , 1);
$result = json_decode($response, true);
if ($result) {
    $errorCode = $result['error_code'];
    if ($errorCode == 0) {
        // 获取返回的天气相关信息，具体根据业务实际逻辑调整修改
        $data = $result['result'];

        // 打印当前实况天气信息
        echo "当前城市：{$data["city"]}".PHP_EOL;
        echo "当前温度：{$data["realtime"]["temperature"]}".PHP_EOL;
        echo "当前湿度：{$data["realtime"]["humidity"]}".PHP_EOL;
        echo "当前天气：{$data["realtime"]["info"]}".PHP_EOL;
        echo "当前风向：{$data["realtime"]["direct"]}".PHP_EOL;
        echo "当前风力：{$data["realtime"]["power"]}".PHP_EOL;
        echo "当前空气质量：{$data["realtime"]["aqi"]}".PHP_EOL;

    } else {
        // 请求异常
        echo "请求异常:{$errorCode}_{$result["reason"]}".PHP_EOL;
    }
} else {
    // 可能网络异常等问题，无法正常获得相应内容，业务逻辑可自行修改
    echo "请求异常".PHP_EOL;
}

/**
 * 发起网络请求函数
 * @param $url 请求的URL
 * @param bool $params 请求的参数内容
 * @param int $ispost 是否POST请求
 * @return bool|string 返回内容
 */
function juheHttpRequest($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, 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36');
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);
    curl_setopt($ch, CURLOPT_TIMEOUT, 12);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    if ($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;
}

3. Initiate life index query through PHP

// 请求的接口URL
$apiUrl = 'http://apis.juhe.cn/simpleWeather/life';
// 请求参数
$params = [
    'city' => '苏州', // 要查询的城市
    'key' => '您申请的接口调用Key'
];
$paramsString = http_build_query($params);

// 发起接口网络请求
$response = juheHttpRequest($apiUrl, $paramsString , 1);
$result = json_decode($response, true);
if ($result) {
    $errorCode = $result['error_code'];
    if ($errorCode == 0) {
        // 获取返回的天气相关信息，具体根据业务实际逻辑调整修改
        $data = $result['result']['life'];

        // 打印当前实况天气信息
        echo "空调指数：{$data['kongtiao']['v']}，{$data['kongtiao']['des']}".PHP_EOL;
        echo "过敏指数：{$data['guomin']['v']}，{$data['guomin']['des']}".PHP_EOL;
        echo "舒适度指数：{$data['shushidu']['v']}，{$data['shushidu']['des']}".PHP_EOL;
        echo "穿衣指数：{$data['chuanyi']['v']}，{$data['chuanyi']['des']}".PHP_EOL;
        echo "钓鱼指数：{$data['diaoyu']['v']}，{$data['diaoyu']['des']}".PHP_EOL;
        echo "感冒指数：{$data['ganmao']['v']}，{$data['ganmao']['des']}".PHP_EOL;
        echo "紫外线指数：{$data['ziwaixian']['v']}，{$data['ziwaixian']['des']}".PHP_EOL;
        echo "洗车指数：{$data['xiche']['v']}，{$data['xiche']['des']}".PHP_EOL;
        echo "运动指数：{$data['yundong']['v']}，{$data['yundong']['des']}".PHP_EOL;
        echo "带伞指数：{$data['daisan']['v']}，{$data['daisan']['des']}".PHP_EOL;
        // .......

    } else {
        // 请求异常
        echo "请求异常:{$errorCode}_{$result["reason"]}".PHP_EOL;
    }
} else {
    // 可能网络异常等问题，无法正常获得相应内容，业务逻辑可自行修改
    echo "请求异常".PHP_EOL;
}

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