一、根据城市名/id查询天气

二。

三、

四、

实例

//appkey

$key='9b1380be63fc20a841c454894651521';

$city='杭州';

//url

$url='http://v.juhe.cn/weather/index?key='.$key.'&cityname='.$city.'&dtype=json&format=2';

$res=file_get_contents($url);

echo '

';

//转化为数组

print_r(json_decode($res,true));

查询结果

Array

(

[resultcode] => 200

[reason] => 查询成功

[result] => Array

(

[sk] => Array

(

[temp] => 31

[wind_direction] => 西南风

[wind_strength] => 3级

[humidity] => 64%

[time] => 12:36

)

[today] => Array

(

[temperature] => 25℃~32℃

[weather] => 小雨

[weather_id] => Array

(

[fa] => 07

[fb] => 07

)

[wind] => 东南风3-5级

[week] => 星期五

[city] => 杭州

[date_y] => 2020年06月26日

[dressing_index] => 炎热

[dressing_advice] => 天气炎热，建议着短衫、短裙、短裤、薄型T恤衫等清凉夏季服装。

[uv_index] => 弱

[comfort_index] =>

[wash_index] => 不宜

[travel_index] => 较不宜

[exercise_index] => 较不宜

[drying_index] =>

)

[future] => Array

(

[0] => Array

(

[temperature] => 25℃~32℃

[weather] => 小雨

[weather_id] => Array

(

[fa] => 07

[fb] => 07

)

[wind] => 东南风3-5级

[week] => 星期五

[date] => 20200626

)

[1] => Array

(

[temperature] => 24℃~28℃

[weather] => 中雨-大雨转阴

[weather_id] => Array

(

[fa] => 22

[fb] => 02

)

[wind] => 西南风4-5级

[week] => 星期六

[date] => 20200627

)

[2] => Array

(

[temperature] => 25℃~30℃

[weather] => 阴

[weather_id] => Array

(

[fa] => 02

[fb] => 02

)

[wind] => 东南风3-5级

[week] => 星期日

[date] => 20200628

)

[3] => Array

(

[temperature] => 24℃~30℃

[weather] => 中雨-大雨转小雨

[weather_id] => Array

(

[fa] => 22

[fb] => 07

)

[wind] => 西南风5-6级

[week] => 星期一

[date] => 20200629

)

[4] => Array

(

[temperature] => 23℃~30℃

[weather] => 小雨

[weather_id] => Array

(

[fa] => 07

[fb] => 07

)

[wind] => 持续无风向微风

[week] => 星期二

[date] => 20200630

)

[5] => Array

(

[temperature] => 24℃~28℃

[weather] => 中雨-大雨转阴

[weather_id] => Array

(

[fa] => 22

[fb] => 02

)

[wind] => 西南风4-5级

[week] => 星期三

[date] => 20200701

)

[6] => Array

(

[temperature] => 24℃~30℃

[weather] => 中雨-大雨转小雨

[weather_id] => Array

(

[fa] => 22

[fb] => 07

)

[wind] => 西南风5-6级

[week] => 星期四

[date] => 20200702

)

)

)

[error_code] => 0

)

来源：https://www.icode9.com/content-1-716051.html