I'm trying to load an xml file using ajax. I tried to modify the example of W3Schools
<html> <head> <script> function showBus(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", "getbus.php?q=" + str, true); xmlhttp.send(); } </script> </head> <body> <form>Select your bus route: <select name="NUMBER" onchange="showBus(this.value)"> <option value="">Select a Bus:</option> <option value="102">102</option> </select> <div id="txtHint"><b>Bus info will be listed here...</b> </div> </form> <?php $q = $_GET["q"]; $xmlDoc = new DOMDocument(); $xmlDoc->load("routes.xml"); $x = $xmlDoc->getElementsByTagName('NUMBER'); for ($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); } } } $BUS = ($y->childNodes); for ($i = 0; $i < $BUS->length; $i++) { //Process only element nodes if ($BUS->item($i)->nodeType == 1) { echo("<b>" . $BUS->item($i)->nodeName . ":</b> "); echo($BUS->item($i)->childNodes->item(0)->nodeValue); echo("<br>"); } } ?> XML File:
<TT> <BUS> <NUMBER>102</NUMBER> <DEPARTING_STOP>102</DEPARTING_STOP> <DESTINATION>102</DESTINATION> <TIME>102</TIME> </BUS> </TT> This is what I get when I select the bus number from drop down menu:
Select your bus route: load("routes.xml"); $x=$xmlDoc->getElementsByTagName('NUMBER'); 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); } } } $BUS=($y->childNodes); for ($i=0;$i<$BUS->length;$i++) { //Process only element nodes if ($BUS->item($i)->nodeType==1) { echo("" . $BUS->item($i)->nodeName . ": "); echo($BUS->item($i)->childNodes->item(0)->nodeValue); echo(" "); } } ?>
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