I would like to implement the equivalent of an adRotator (in ASP) using php. I would like visitors on my site to see a different customer testimonial every time they visit and a different testimonial as they browse through the different pages on the website. However the best implementation would be for the testimonials to keep changing say after every 5 seconds. I intend to store the testimonials in an xml file. Any help will be appreciated.
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Rotating Testimonial Help 1
- Thread starter jomuga
- Start date
-
1
- #2
if you wish them to change every five seconds then you will need either to load all the testimonials into each page and use js to rotate them or make AJAX calls.
if you want them to rotate each page refresh then you need no js.
the process is straightforward, but I would store the testimonials in a database or a csv. database is easiest because you don't have to read the entire set of testimonials into an array each time.
if you want them to rotate each page refresh then you need no js.
the process is straightforward, but I would store the testimonials in a database or a csv. database is easiest because you don't have to read the entire set of testimonials into an array each time.
Code:
function deliverTestimonial(){
//start the session if not already started
if (session_name() == '') {
session_start();
}
$cur = isset($_SESSION['currentTestimonial']) ? $_SESSION['curentTestimonial'] :'';
//count number of testimonials
$num = mysql_result(mysql_query("select count(*) from table where id <> $cur"), 0,0);
$random = rand(0, $num-1); //create random integer
//get testimonial
$result = mysql_query( "Select
id, testimonial
From table
where id <> $cur
limit 1
offset $random");
$row = mysql_fetch_assoc($result);
//assign new current id to session
$_SESSION['currentTestimonial'] = $row['id'];
return $row['testimonial'];
}on reflection you could simplify the code even more by pushing the randomisation into mysql (not possible with xml/csv of course). Code as follows:
Code:
function deliverTestimonial(){
//start the session if not already started
if (session_name() == '') {
session_start();
}
$cur = isset($_SESSION['currentTestimonial']) ? $_SESSION['curentTestimonial'] :'';
/*
//count number of testimonials
$num = mysql_result(mysql_query("select count(*) from table where id <> $cur"), 0,0);
$random = rand(0, $num-1); //create random integer
*/
//get testimonial
$result = mysql_query( " Select
id, testimonial
From table
where id <> $cur
order by rand()
limit 1");
$row = mysql_fetch_assoc($result);
//assign new current id to session
$_SESSION['currentTestimonial'] = $row['id'];
return $row['testimonial'];
}- Thread starter
- #4
have fun. here is an ajax implementation for you to try as well
Code:
<head>
<script language="javascript1.5">
var xObj;
var uri = "rotateTestimonial.php"; //relative path
var tObj, testimonial
var timeout = 10; //number of seconds
window.onload = function () {
//need to call this after the window has loaded
testimonial = document.getElementById("testimonial");
//get content for the initial display
refreshTestimonial();
tObj = window.setInterval(refreshTestimonial, (timeout * 1000));
}
function init_transport() {
var A;
var o = new Array(
'Msxml2.XMLHTTP.5.0',
'Msxml2.XMLHTTP.4.0',
'Msxml2.XMLHTTP.3.0',
'Msxml2.XMLHTTP',
'Microsoft.XMLHTTP');
for (var i = 0; i < o.length; i++) {
try {
A = new ActiveXObject(o[i]);
} catch (e) {
A = null;
}
}
if(!A && typeof XMLHttpRequest != "undefined") {
A = new XMLHttpRequest();
}
xObj = A;
}
function refreshTestimonial(){
if (!xObj) {
init_transport();
}
try {
xObj.open("GET", uri, true);
} catch (e) {
return;
}
xObj.onreadystatechange = function() {
if (xObj.readyState != 4) {
return;
} else {
testimonial.innerHTML = xObj.responseText;
}
}
xObj.send(null);
}
</script>
<style type="text/css">
#testimonial { width: 120px; height: 200px; border: red thin solid; font-family:Verdana, Arial, Helvetica, sans-serif; font-size:9px; color: #006699; background-color:#FFCCFF;}
</style>
</head>
<body>
<div id="testimonial">
</div>
Code:
echo deliverTestimonial();
function deliverTestimonial(){
//start the session if not already started
if (session_name() == '') {
session_start();
}
$cur = isset($_SESSION['currentTestimonial']) ? $_SESSION['curentTestimonial'] :'';
//count number of testimonials
$num = mysql_result(mysql_query("select count(*) from table where id <> $cur"), 0,0);
$random = rand(0, $num-1); //create random integer
//get testimonial
$result = mysql_query( "Select
id, testimonial
From table
where id <> $cur
limit 1
offset $random");
$row = mysql_fetch_assoc($result);
//assign new current id to session
$_SESSION['currentTestimonial'] = $row['id'];
return $row['testimonial'];
}- Status
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