<"我的应用"中找到相关值
$showapi_secret = '7c55aef4ede442ffa49b24c2c808e523'; //替换此值,在官网的"我的应用"中找到相关值 
$paramArr = array(
   'showapi_appid'=> $showapi_appid,
   'areaid'=> "",
   'area'=> "淄博",
   'needMoreDay'=> "",
   'needIndex'=> "",
   'needHourData'=> "",
   'need3HourForcast'=> "",
   'needAlarm'=> ""
   //添加其他参数
);

//创建参数(包括签名的处理)接口自带编写的数组
function createParam ($paramArr,$showapi_secret) {
   $paraStr = "";
   $signStr = "";
   ksort($paramArr);
   foreach ($paramArr as $key => $val) {
     if ($key != '' && $val != '') {
       $signStr .= $key.$val;
       $paraStr .= $key.'='.urlencode($val).'&';
     }
   }
   $signStr .= $showapi_secret;//排好序的参数加上secret,进行md5
   $sign = strtolower(md5($signStr));
   $paraStr .= 'showapi_sign='.$sign;//将md5后的值作为参数,便于服务器的效验
  
   return $paraStr;
}

$param = createParam($paramArr,$showapi_secret);
$url = 'http://route.showapi.com/9-2"./DBDA.class.php";
$db = new DBDA();

$sql = "insert into weather values('','{$arr1}','{$arr2}')";
$arr = $db->query($sql);  
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以上这篇PHP调用API接口实现天气查询功能的示例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。