Ajax and XML of PHP Novice Ajax and XML

Next we use a case to explain in detail:

     
  
  Select a person: Peter Griffin Lois Griffin Glenn Quagmire Joseph Swanson  
 
 
Person info will be listed here.
  

Next we create a php file, the code is as follows:

load("cd_catalog.xml"); $x=$xmlDoc->getElementsByTagName('ARTIST'); for ($i=0; $i<=$x->length-1; $i++) { // 处理元素节点 if ($x->item($i)->nodeType==1) { if ($x->item($i)->childNodes->item(0)->nodeValue == $q) { $y=($x->item($i)->parentNode); } } } $cd=($y->childNodes); for ($i=0;$i<$cd->length;$i++) { // 处理元素节点 if ($cd->item($i)->nodeType==1) { echo("" . $cd->item($i)->nodeName . ": "); echo($cd->item($i)->childNodes->item(0)->nodeValue); echo("
"); } } ?>

When the CD query is sent from JavaScript to the PHP page, it will happen ：

1. PHP creates an XML DOM object

2. Finds names in all elements that match the data passed by JavaScript

3. Outputs the album information and send back the "txtHint" placeholder

Note: This code needs to be copied to local testing, provided that there is the database table we mentioned in the previous section