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微信公众平台开发实例 PHP开发 代码挂载SAE平台(六)星座物语 p

Jun 06, 2016 pm 07:41 PM
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今天带来的是查询每日 星座 运势的功能,这个功能非常简单,在微信 平台 上输入 星座 名称加一个标识符(例如“”号),后台程序匹配这个标识符调用相应的功能。 具体流程上:1.使用字符串分割函数explode(w3school)获取到 星座 名称。 2.将 星座 名称匹配

今天带来的是查询每日星座运势的功能,这个功能非常简单,在微信平台上输入星座名称加一个标识符(例如“+”号),后台程序匹配这个标识符调用相应的功能。

具体流程上:1.使用字符串分割函数explode(w3school)获取到星座名称。

2.将星座名称匹配成相应的星座编号。

3.将这个编号传递给相应的API。

4.接收API返回的xml格式的数据。

5.处理xml格式的数据。

6.生成结果。

其中我再制作过程中由于是初学者,在第五步费了些功夫。API返回的xml格式为

<root>
    <item>
        <title>综合运势</title>
        <rank>3</rank>
        <value></value>
    </item>
    <item>
        <title>爱情运势</title>
        <rank>3</rank>
        <value></value>
    </item>
    <item>
        <title>工作状况</title>
        <rank>2</rank>
        <value></value>
    </item>
      ……
    <item>2013-11-16</item>
</root>
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首先我使用file_get_contents() 函数把API返回的数据文件读入一个字符串中。然后用
<item>
           <title>……</title>
           <rank>……<rank>
           <value>……<value>
</value></value></rank></rank></item>
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这种格式,这样我使用“对象”->item->title的方法只能读取到第一个item的数据,这里我最终使用的办法的使用
 foreach ($xml->item as $th) {

            $content_title[$i] = $th->title;
            $content_rank[$i] = $th->rank;
            $content_value[$i] = $th->value;
            $i++;
        }
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对这个对象“$xml”实现遍历,并使用一个自增变量i把每一组的数据存储在数组中。

其中的foreach 语句用于循环遍历数组。

每进行一次循环,当前数组元素的值就会被赋值给 value 变量(数组指针会逐一地移动) - 以此类推。

语法

foreach (array as value)
{
    code to be executed;
}
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例子

下面的例子示范了一个循环,这个循环可以输出给定数组的值:



<?php $arr=array("one", "two", "three");

foreach ($arr as $value)
{
  echo "Value: " . $value . "<br />";
}
?>


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程序源代码如下:

function xingzuo($keyword) {
    if (make_xingzuo($keyword)) {
        $keyword = make_xingzuo($keyword);
        $qurl = 'http://api.uihoo.com/astro/astro.http.php?fun=day&id=' . $keyword . '&format=xml';
        $content = file_get_contents($qurl);
        $xml = simplexml_load_string($content);
        $i = 0;
        foreach ($xml->item as $th) {

            $content_title[$i] = $th->title;
            $content_rank[$i] = $th->rank;
            $content_value[$i] = $th->value;
            $i++;
        }

        return "星座运势:\n综合运势:" . $content_rank[0] . "颗星\n爱情运势:" . $content_rank[1] . "颗星\n学习状态:" . $content_rank[2] . "颗星\n理财运势:" . $content_rank[3] . "颗星\n健康指数:" . $content_value[4] . "\n幸运颜色:" . $content_value[6] . "\n幸运数字:" . $content_value[7] . "\n速配星座:" . $content_value[8] . "\n综合概述:" . $content_value[9];
    }
    else
        return "输入的星座小编不认识哎>_ '0','金牛座' => '1','双子座' => '2','巨蟹座' => '3','狮子座' => '4','处女座' => '5','天秤座' => '6','天平座' => '6','天蝎座' => '7','射手座' => '8','摩羯座' => '9','水瓶座' => '10','双鱼座' => '11');
    if(strtr($keyword, $arr)0){
        return strtr($keyword, $arr);
    }
 else {
       return false; 
    }
    
    
}
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