PHP——做服务

xml的写法和特点

<?xml version='1.0' encoding='utf-8'?>
<Info>
<code>c001</code>
<name>张三</name>
</Info>

1.标记不一样
2.标签名可以自定义
3.大小写敏感
4.开始和结束必须要写全
5.标签名也可以有属性

<?php

//如何创建JSON
$attr = array("one"=>123,"two"=>456);

$json = json_encode($attr);

//解析JSON
$attrjson = json_decode($json);
print_r($attrjson);

//创建XML
$str = "<?xml version='1.0' ?>";
$str = $str."<Info>";
$str = $str."<code>c001</code>";
$str = $str."<name>张三</name>";
$str = $str."</Info>";

file_put_contents("aa.txt",$str);

//解析XML
$xml = file_get_contents("aa.txt");
$attrxml = simplexml_load_string($xml);

print_r($attrxml);

$code = $_GET["code"];

include("mydbda.php");
$db = new mydbda();

$sql = "select * from Info where Code = '{$code}'";

$str = $db->Select($sql,"CX","mydb");

$lie = explode("^",$str);

$str = "<?xml version='1.0' ?>";

$str .=<<<XX
    <Info>
        <code>{$lie[0]}</code>
        <name>{$lie[1]}</name>
    </Info>
XX;

$str = $str."<Info>";
$str = $str."<code>{$lie[0]}</code>";
$str = $str."<name>{$lie[1]}</name>";
$str = $str."</Info>";

echo $str;

//以下使用的是md5签名方式，并不是简单签名

header("Content-Type:text/html;charset=UTF-8");
date_default_timezone_set("PRC");
$showapi_appid = '4711';  //替换此值
$showapi_sign = '6c942094705c4a469d01114136e608e7';  //替换此值。
$showapi_timestamp = date('YmdHis');
$paramArr = array(
     'showapi_appid'=> $showapi_appid,
     'areaid' => '' ,
     'area' => '淄博' ,
     'needMoreDay' => '' ,
     'needIndex' => '' ,
     'needHourData' => '' ,
     'need3HourForcast' => '' ,
     'needAlarm' => '' ,
     'showapi_timestamp' => $showapi_timestamp
    // other parameter
);

function createSign ($paramArr) {
     global $showapi_sign;
     $sign = "";
     ksort($paramArr);
     foreach ($paramArr as $key => $val) {
         if ($key != '' && $val != '') {
             $sign .= $key.$val;
         }
     }
     $sign.=$showapi_sign;
     $sign = strtoupper(md5($sign));
     return $sign;
}
function createStrParam ($paramArr) {
     $strParam = '';
     foreach ($paramArr as $key => $val) {
     if ($key != '' && $val != '') {
             $strParam .= $key.'='.urlencode($val).'&';
         }
     }
     return $strParam;
}

$sign = createSign($paramArr);
$strParam = createStrParam($paramArr);
$strParam .= 'showapi_sign='.$sign;
$url = 'http://route.showapi.com/9-2?'.$strParam;  

$result = file_get_contents($url);
$result = json_decode($result);

$attr = object_array($result);

 //echo $attr['showapi_res_body']['f1']['day_air_temperature'];

echo "今天的温度是：{$attr['showapi_res_body']['f1']['day_air_temperature']}--{$attr['showapi_res_body']['f1']['night_air_temperature']}";

function object_array($array) {
    if(is_object($array)) {
        $array = (array)$array;
     } if(is_array($array)) {
         foreach($array as $key=>$value) {
             $array[$key] = object_array($value);
             }
     }
     return $array;
}

?>

<?php
header("Content-Type:text/html;charset=UTF-8");

$str = file_get_contents("http://f.apiplus.cn/ssq-10.json");
$result = json_decode($str);

print_r($result);

?>