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PHP CURL/JSON应用
Mr.Ran
Original
716 people have browsed it

PHP CURL＼JSON 应用

  • API 天气接口请求
  • curl
  • json_decode
  • json_encode

PHP 代码

  1. <?php
  2.     define('JUHE_API','http://apis.juhe.cn/simpleWeather/query');
  3.     define('JUHE_KEY','abc4b64ae7656b460723402175a5650b');
  5.     function getTianqi(string $city,$isget=1){
  6.         $data = ['key'=> JUHE_KEY,'city'=>$city];
  7.         $url = JUHE_API.'?';
  8.         $ch = curl_init();
  9.         curl_setopt($ch,CURLOPT_URL,JUHE_API);
  10.         curl_setopt($ch,CURLOPT_TIMEOUT,30);
  11.         curl_setopt($ch,CURLOPT_AUTOREFERER,1);
  12.         curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
  13.         if ($isget) {
  14.             foreach ($data as $k => $v) {
  15.                 $url .= $k.'='.$v.'&';
  16.             }
  17.             curl_setopt($ch,CURLOPT_URL,$url);
  18.         } else {
  19.             curl_setopt($ch,CURLOPT_POST,1);
  20.             curl_setopt($ch,CURLOPT_POSTFIELDS,$data);
  21.         }
  23.         $rs = curl_exec($ch);
  24.         curl_close($ch);
  25.         return json_decode($rs,true);
  26.     }
  28.     $arrs = getTianqi(isset($_POST['city'])?$_POST['city']:'北京',0);
  29.     $errorMessage='';
  30.     if ($arrs['error_code'] == 0) {
  31.         $city = $arrs['result']['city'];
  32.         $real = $arrs['result']['realtime'];
  33.         $future = $arrs['result']['future'];
  34.         $futureHTML = '<table class="table"><thead class="thead-dark"><tr><th>日期:</th><th>温度</th><th>天气情况</th><th>风向</th></tr><thead/>';
  35.         foreach ($future as $f) {
  36.             $futureHTML.= "<tr><td>".$f['date']."</td>";
  37.             $futureHTML.= "<td>".$f['temperature']."</td>";
  38.             $futureHTML.= "<td>".$f['weather']."</td>";
  39.             $futureHTML.= "<td>".$f['direct']."</td></tr>";
  40.         }
  41.         $futureHTML .= '</table>';
  42.     } else {
  43.         $errorMessage = $arrs['reason'];
  44.     }
  45. ?>

HTML 代码

  1. <!DOCTYPE html>
  2. <html lang="en">
  3.   <head>
  4.     <meta charset="UTF-8" />
  5.     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  6.     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  7.     <title>天气预报</title>
  8.     <link
  9.       href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.6.0/css/bootstrap.css"
  10.       rel="stylesheet"
  11.     />
  12.     <style>
  13.       .lead label {
  14.         margin-right: 10px;
  15.       }
  16.     </style>
  17.   </head>
  18.   <body>
  19.     <?=$errorMessage?>
  20.     <div
  21.       class="jumbotron"
  22.       style="display:<?=!empty($errorMessage)?'none':'block'?>;"
  23.     >
  24.       <h1 class="display-4">当前城市天气:</h1>
  25.       <p class="lead">
  26.         <label>城市:<?=!empty($city)?$city:'暂无数据'?></label>
  27.         <label
  28.           >温度:<?=!empty($real['temperature'])?$real['temperature']:''?>℃</label
  29.         >
  30.         <label>天气:<?=!empty($real['info'])?$real['info']:''?></label>
  31.         <label>湿度:<?=!empty($real['humidity'])?$real['humidity']:''?></label>
  32.         <label>风向:<?=!empty($real['direct'])?$real['direct']:''?></label>
  33.         <label>风力:<?=!empty($real['power'])?$real['power']:''?></label>
  34.         <label>空气质量:<?=!empty($real['aqi'])?$real['aqi']:''?></label>
  35.       </p>
  36.       <hr class="my-4" />
  37.       <form action="" method="post" class="input-group">
  38.         <input
  39.           class="form-control"
  40.           type="text"
  41.           name="city"
  42.           value="<?=$city?>"
  43.           placeholder="请输入城市名称"
  44.         />
  45.         <button class="btn btn-primary input-group-append" type="submit">
  46.           查询天气
  47.         </button>
  48.       </form>
  49.       <hr class="my-4" />
  50.       <p>近5天天气情况:</p>
  51.       <?=!empty($futureHTML)?$futureHTML:'暂无数据'?>
  52.     </div>
  53.   </body>
  54. </html>

运行结果:

Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：
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