PHP Guru: How write/use ajax using XML format?

Saturday, 25 October 2014

How write/use ajax using XML format?

<html>
<head>
<script>
function showCD(str) {
if (str=="") {
document.getElementById("txtHint").innerHTML="";
    return;
}
if (window.XMLHttpRequest) {
    // code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
} else { // code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
    document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
    }
}
xmlhttp.open("GET","getcd.php?q="+str,true);
xmlhttp.send();
}
</script>
</head>
<body>

<form>
Select a CD:
<select name="cds" onchange="showCD(this.value)">
<option value="">Select a CD:</option>
<option value="Bob Dylan">Bob Dylan</option>
<option value="Bonnie Tyler">Bonnie Tyler</option>
<option value="Dolly Parton">Dolly Parton</option>
</select>
</form>
<div id="txtHint"><b>CD info will be listed here...</b></div>

</body>
</html>

<?php
$q=$_GET["q"];

$xmlDoc = new DOMDocument();
$xmlDoc->load("cd_catalog.xml");

$x=$xmlDoc->getElementsByTagName('ARTIST');

for ($i=0; $i<=$x->length-1; $i++) {
//Process only element nodes
if ($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++) {
//Process only element nodes
if ($cd->item($i)->nodeType==1) {
echo("<b>" . $cd->item($i)->nodeName . ":</b> ");
    echo($cd->item($i)->childNodes->item(0)->nodeValue);
  echo("<br>");
  }
}
?>

PHP Guru

Saturday, 25 October 2014

How write/use ajax using XML format?

No comments:

How calulation total value for HTML input text?