i'm relatively new when it comes to creating web pages that use PHP and XML but i am interested in somthine that i saw at W3S Schools. i want to create a AJAX live search to the one that is shows in there example page but first i need help learning how to make it run.(http://www.w3schools.com/php/php_ajax_livesearch.asp) i copy pasted the three code files that are in the website and when i click the html file all i get is an empty form box. Do i need to somehow link this with MySql? if so how do i got about doing this?
index.html:
<html>
<head>
<script>
function showResult(str)
{
if (str.length==0)
{
document.getElementById("livesearch").innerHTML="";
document.getElementById("livesearch").style.border="0px";
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("livesearch").innerHTML=xmlhttp.responseText;
document.getElementById("livesearch").style.border="1px solid #A5ACB2";
}
}
xmlhttp.open("GET","livesearch.php?q="+str,true);
xmlhttp.send();
}
</script>
</head>
<body>
<form>
<input type="text" size="30" onkeyup="showResult(this.value)">
<div id="livesearch"></div>
</form>
</body>
</html>
livesearch.php :
<?php
$xmlDoc=new DOMDocument();
$xmlDoc->load("links.xml");
$x=$xmlDoc->getElementsByTagName('link');
//get the q parameter from URL
$q=$_GET["q"];
//lookup all links from the xml file if length of q>0
if (strlen($q)>0)
{
$hint="";
for($i=0; $i<($x->length); $i++)
{
$y=$x->item($i)->getElementsByTagName('title');
$z=$x->item($i)->getElementsByTagName('url');
if ($y->item(0)->nodeType==1)
{
//find a link matching the search text
if (stristr($y->item(0)->childNodes->item(0)->nodeValue,$q))
{
if ($hint=="")
{
$hint="<a href='" .
$z->item(0)->childNodes->item(0)->nodeValue .
"' target='_blank'>" .
$y->item(0)->childNodes->item(0)->nodeValue . "</a>";
}
else
{
$hint=$hint . "<br /><a href='" .
$z->item(0)->childNodes->item(0)->nodeValue .
"' target='_blank'>" .
$y->item(0)->childNodes->item(0)->nodeValue . "</a>";
}
}
}
}
}
// Set output to "no suggestion" if no hint were found
// or to the correct values
if ($hint=="")
{
$response="no suggestion";
}
else
{
$response=$hint;
}
//output the response
echo $response;
?>
links.xml :
<!-- Edited by XMLSpy® --><pages><link><title>HTML a tag</title><url>http://www.w3schools.com/tags/tag_a.asp</url></link><link><title>HTML br tag</title><url>http://www.w3schools.com/tags/tag_br.asp</url></link><link><title>CSS background Property</title><url>http://www.w3schools.com/cssref/css3_pr_background.asp</url></link><link><title>CSS border Property</title><url>http://www.w3schools.com/cssref/pr_border.asp</url></link><link><title>JavaScript Date Object</title><url>http://www.w3schools.com/jsref/jsref_obj_date.asp</url></link><link><title>JavaScript Array Object</title><url>http://www.w3schools.com/jsref/jsref_obj_array.asp</url></link></pages>
Thanks for any help
