PHP特區 : [轉貼]PHP and Web Services 學習筆記

<?xml version="1.0" encoding="UTF-8" ?>
<ResultSet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:yahoo:srch"
xsi:schemaLocation="urn:yahoo:srch http://api.search.yahoo.com/WebSearchService/V1/WebSearchResponse.xsd"
type="web" totalResultsAvailable="575000"
totalResultsReturned="10" firstResultPosition="1"
moreSearch="/WebSearchService/V1/webSearch?query=%5C%22XML+Query%5C%22&appid=YahooDemo®ion=us">
  <Result>
    <Title>W3C XML Query (XQuery)</Title>
    <Summary>Language that allows for flexible query facilities to extract data
    from real and virtual documents on the Web.</Summary>
    <Url>http://www.w3.org/XML/Query</Url>
    <ClickUrl>http://uk.wrs.yahoo.com/_ylt=A0Je5Vx_EWpHwV0AkC7dmMwF;
    _ylu=X3oDMTB2cXVjNTM5BGNvbG8DdwRsA1dTMQRwb3MDMQRzZWMDc3IEdnRpZAM-/
    SIG=11fuf4pkj/EXP=1198220031/**http%3A//www.w3.org/XML/Query</ClickUrl>
    <DisplayUrl>www.w3.org/XML/Query</DisplayUrl>
    <ModificationDate>1198051200</ModificationDate>
    <MimeType>text/html</MimeType>
    <Cache>
      <Url>http://uk.wrs.yahoo.com/_ylt=A0Je5Vx_EWpHwV0AkS7dmMwF;
      _ylu=X3oDMTBwOHA5a2tvBGNvbG8DdwRwb3MDMQRzZWMDc3IEdnRpZAM-/
      SIG=16gufb4vc/EXP=1198220031/**http%
      3A//66.218.69.11/search/cache%3Fei=UTF-8%26query=%255C%2522XML%2BQuery%255C%2522%26
      appid=YahooDemo%26u=www.w3.org/XML/Query%26w=%2522xml%2Bquery%2522%26d=DYOEo7XiP-1e%26icp=1%26.intl=us</Url>
      <Size>58502</Size>
    </Cache>
  </Result>
  <Result>
    <Title>XQuery 1.0: An XML Query Language</Title>
    <Summary>Don Chamberlin (XML Query WG), IBM Almaden Research Center,
    via http://www. ... has been developed by the W3C XML Query Working Group,
    which is part of the ...</Summary>
    <Url>http://www.w3.org/TR/xquery/</Url>
    <ClickUrl>http://uk.wrs.yahoo.com/_ylt=A0Je5Vx_EWpHwV0Aky7dmMwF;
    _ylu=X3oDMTB2ZjQ4dDExBGNvbG8DdwRsA1dTMQRwb3MDMgRzZWMDc3IEdnRpZAM-/
    SIG=11g15fbj0/EXP=1198220031/**http%3A//www.w3.org/TR/xquery/</ClickUrl>
    <DisplayUrl>www.w3.org/TR/xquery/</DisplayUrl>
    <ModificationDate>1169193600</ModificationDate>
    <MimeType>text/html</MimeType>
    <Cache>
      <Url>http://uk.wrs.yahoo.com/_ylt=A0Je5Vx_EWpHwV0AlC7dmMwF;
      _ylu=X3oDMTBwZG5hOWwzBGNvbG8DdwRwb3MDMgRzZWMDc3IEdnRpZAM-/SIG=16hn3aelo/EXP=1198220031
      /**http%3A//66.218.69.11/search/cache%3Fei=UTF-8%26query=%255C%2522XML%2BQuery%255C%2522%26
       *      appid=YahooDemo%26u=www.w3.org/TR/xquery/%26w=%2522xml%2Bquery%2522%26d=YBKWrbXiP9TA%26icp=1%26.intl=us</Url>
      <Size>525624</Size>
    </Cache>
  </Result>
....
</ResultSet>
<!-- ws02.search.scd.yahoo.com compressed/chunked Wed Dec 19 22:53:51 PST 2007 -->

<?xml version="1.0" encoding="utf-8" ?>
<rsp stat="ok">
  <countries type='array'>
    <country type='struct'>
      <id>830</id>
      <title>United States</title>
    </country>
    <country type='struct'>
      <id>831</id>
      <title>Canada</title>
    </country>
    ....
  </countries>
</rsp>

<?php
  //This query does a search for any Web pages relevant to "XML Query"
  $query = "http://api.search.yahoo.com/WebSearchService/V1/webSearch?"."query=%5C%22XML%20Query%5C%22&appid=YahooDemo";
  $xml = simplexml_load_file($query);
  // Load up the root element attributes
  foreach($xml->attributes() as $name=>$attr) {
   $res[$name]=$attr;
  }
  //Use one of those "informational" elements to display the total
  //number of results for the query.
  echo "<p>The query returns ".$res["totalResultsAvailable"]." total results The first 10 are as follows:</p>";
  //Unlike with DOM, where we loaded the entire document into the result object,
  // with SimpleXML, we get back an object in thefirst place,
  // so we can just use the number of results returned to loop through the Result members.
  for($i=0; $i<$res['totalResultsReturned']; $i++) {
   //The object represents each piece of data as a member variable
   //rather than an array element, so the syntax is a little bit
   //different from the DOM version.
   $thisResult = $xml->Result[$i];
   echo "<a href='".$thisResult->ClickUrl."'><b>".
   $thisResult->Title."</b></a>: ";
   echo $thisResult->Summary;
   echo "<br /><br />";
  }
?>