With Php Custom Search, full-featured text search engine library written entirely in Php,javascript and xml. It is a technology suitable for nearly any application that requires full-text search.
step-1 First you create index.html page and adding some javascript code for using functionality livesearch.php page
<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 (this.readyState==4 && this.status==200) {
document.getElementById("livesearch").innerHTML=this.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>
step-2 Then you create livesearch.php page
<?php
$xmlDoc = new DOMDocument();
$xmlDoc->load("links.xml");
$x=$xmlDoc->getElementsByTagName('link');
$q=$_GET["q"];
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)
{
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'>".
$y->item(0)->childNodes->item(0)->nodeValue. "</a>";
}
}
}
}
}
if($hint==""){
$response = "No results found";
}
else
{
$response = $hint;
}
echo $response;
?>
step-3 Then you create links.xml file links.xml is used for linking with search data.
<pages> <link> <title>HTML br tag</title> <url>https://www.w3schools.com/tags/tag_br.asp</url> </link> <link> <title>CSS background Property</title> <url> https://www.w3schools.com/cssref/css3_pr_background.asp </url> </link> <link> <title>CSS border Property</title> <url>https://www.w3schools.com/cssref/pr_border.asp</url> </link> <link> <title>JavaScript Date Object</title> <url>https://www.w3schools.com/jsref/jsref_obj_date.asp</url> </link> <link> <title>JavaScript Array Object</title> <url> https://www.w3schools.com/jsref/jsref_obj_array.asp </url> </link> </pages>