<?php// Yahoo Web Services PHP Example Code// Rasmus Lerdorfrequire './common.php';$q=build_query();// Then send it to the appropriate service$xml = file_get_contents($service[$_REQUEST['type']].$q);// Parse the XML and check it for errorsif (!$dom = domxml_open_mem($xml,DOMXML_LOAD_PARSING,$error)) {  echo "XML parse error\n";  foreach ($error as $errorline) {  /* For production use this should obviously be logged to a file instead */    echo $errorline['errormessage']."<br />\n";    echo " Node  : " . $errorline['nodename'] . "<br />\n";    echo " Line  : " . $errorline['line'] . "<br />\n";    echo " Column : " . $errorline['col'] . "<br />\n";  }  done();}// Now traverse the DOM with this function// It is basically a generic parser that turns limited XML into a PHP array// with only a couple of hardcoded tags which are common across all the// result xml from the web servicesfunction xml_to_result($dom) {  $root = $dom->document_element();  $res['totalResultsAvailable'] = $root->get_attribute('totalResultsAvailable');  $res['totalResultsReturned'] = $root->get_attribute('totalResultsReturned');  $res['firstResultPosition'] = $root->get_attribute('firstResultPosition');  $node = $root->first_child();  $i = 0;  while($node) {    switch($node->tagname) {      case 'Result':        $subnode = $node->first_child();        while($subnode) {          $subnodes = $subnode->child_nodes();          if(!empty($subnodes)) foreach($subnodes as $k=>$n) {            if(empty($n->tagname)) $res[$i][$subnode->tagname] = trim($n->get_content());            else $res[$i][$subnode->tagname][$n->tagname]=trim($n->get_content());          }          $subnode = $subnode->next_sibling();        }        break;      default:        $res[$node->tagname] = trim($node->get_content());        $i--;        break;    }    $i++;    $node = $node->next_sibling();  }    return $res;}$res = xml_to_result($dom);// Ok, now that we have the results in an easy to use format,// display them.  It's quite ugly because I am using a single// display loop to display every type.$first = $res['firstResultPosition'];$last = $first + $res['totalResultsReturned']-1;echo "<p>Matched ${res[totalResultsAvailable]}, showing $first to $last</p>\n";if(!empty($res['ResultSetMapUrl'])) {  echo "<p>Result Set Map: <a href=\"${res[ResultSetMapUrl]}\">${res[ResultSetMapUrl]}</a></p>\n";}for($i=0; $i<$res['totalResultsReturned']; $i++) {  foreach($res[$i] as $key=>$value) {    switch($key) {      case 'Thumbnail':        echo "<img src=\"${value[Url]}\" height=\"${value[Height]}\" width=\"${value[Width]}\" />\n";        break;      case 'Cache':        echo "Cache: <a href=\"${value[Url]}\">${value[Url]}</a> [${value[Size]}]<br />\n";        break;      case 'PublishDate':      case 'ModificationDate':        echo "<b>$key:</b> ".strftime('%X %x',(int)$value)."<br />\n";        break;      default:        if(stristr($key,'url')) echo "<a href=\"$value\">$value</a><br />\n";        else echo "<b>$key:</b> $value<br />";        break;    }  }  echo "<hr />\n";}next_prev($res, $first, $last);done();?>