Develop Reference

Ajax - Response from another page

My HTML as follows, located in index.php
<div id="showDetails">
</div>
<div id="showList">
</div>
And my Ajax as follows, still in index.php
function funcReadRecord() {
var readrecord1 = "readrecord1";
var sometext = $('#SNOW_INC').val();
$.ajax({
url : "findsql.php",
type : 'post' ,
data : { readrecord1 : readrecord1,
sometext : sometext } ,
success : function(data, status){
$('#showList').html(data);
}
});
}
Now, I can return my list and view the required list (shown as a list group) in index.php.
I have a button in index.php that when clicked, runs the function.
<div>
<button type="button" onclick="funcReadRecord()" class="btn btn-primary">Search SQL (LIKE)</button>
</div>
The code in findsql.php as follows
if(isset($_POST['readrecord1']) && isset($_POST['sometext'])){
$displaysql = "SELECT * from datadump where short_description LIKE '%".$_POST['sometext']."%'";
$result = mysqli_query($conn, $displaysql);
if(mysqli_num_rows($result) > 0){
while ($row = mysqli_fetch_array($result)) {
$items[] = array(
"number" => $row['number'],
"priority" => $row['priority'],
"description" => $row['short_description']);
}
}
echo '<p class="lead">SEARCH SQL (LIKE)<p>';
echo '<div class="list-group">';
foreach($items as $result) {
?>
<a href="#" class="list-group-item list-group-item-action">
<div class="d-flex w-100 justify-content-between">
<h5 class="mb-1"><?php echo $result['number']; ?></h5>
<small></small>
</div>
<p class="mb-1"><?php echo $result['description']; ?></p>
<small><?php echo $result['priority']; ?></small>
</a>
<?php
}
echo '</div>';
}
All I'm doing is getting the data from MySQL and assigning them to array and listing them. I know I could do it directly but I need the array in some other function.
The question is how do I make details from the array to show in showDetails div tag when I click the list? Right now, the HREF is #. I could assign a function, but not sure where to write them.
If I should write a function to return them, should I write in index.php or findsql.php?
Thanks in advance.

I understand that you need individual record information in #showDetails div right ! then
step1: assign new function while clicking the particular item as onclick="funcReadRecord(number)", this should at findsql.php file.
step2: write an ajax function in index.php which will send that particular unique id or in your case number
function funcReadRecord(number) {
$.ajax({
url : "findsql.php",
type : 'post' ,
data : { id: number } ,
success : function(data, status){
$('#showDetails').html(data);
}
});
Step3: Write another function in findsql.php with else if block as checking id isset or not, change the query that takes the number or any key that gets only that particular record.
else if(isset($_POST['id'])){
$displaysql = "SELECT * from datadump where number = ".$_POST['id'].";
// remaining design code below
}
We can use the if-else statement to write multiple ajax calls as above.
Edited, Note: kindly ignore the syntax issue in the above code, concentrate on the process used to a single PHP file for multiple ajax calls using branching statements.

Updating and passing a value in PHP

I want to make a bundle creator in Wordpress using Woocommerce, where you select 1 of 4 T-shirts + 1 of 4 pairs of socks and they get added to the cart. Currently I am stuck on figuring out how to approach this. What I currently need to achieve is this:
There is a top image which corresponds to the currently selected product and three smaller images below that. Once you click the small image, it needs to change the top image. There is also a title on the bottom, which corresponds to the currently selected product, that changes together with the top image. You can see the intended result here.
I need to somehow get the ID of the product the user clicks on and pass it to other php functions. This is where I got stuck. Can anybody help me out?
The code should look something like this:
<div id="selected-product-image">
<?php get_the_post_thumbnail(/* ID of the currently selected product*/); ?>
</div>
<ul class="products">
<?php
$args = array( 'post_type' => 'product', 'posts_per_page' => 4, 'product_cat' => 't-shirts', 'orderby' => 'name' );
$loop = new WP_Query( $args );
?>
<?php while ( $loop->have_posts() ) : $loop->the_post(); global $product; ?>
<li class="product">
<div class="select-product"><!--This should have a function to capture the product ID on click. -->
<?php echo get_the_post_thumbnail($loop->post->ID, 'shop_catalog'); ?>
</div>
</li>
<?php endwhile; ?>
<div id="selected-product-name">
<?php get_the_title(/* ID of the currently selected product*/) ?>;
</div>
<?php wp_reset_query(); ?>
</ul>
I understand that I can do something like this using AJAX, but I am not sure how to use the returned ID back in get_the_post_thumbnail() or get_the_title(). This is what I got:
<script type="text/javascript">
jQuery(document).ready(function() {
jQuery("#select-product").click(function() {
var id = 29; /* Any value for testing */
jQuery.ajax({
method: "post",
url: "/test.php",
data: {
productID: id
}
})
.done(function(data) {
alert(data);
/* How do I use this data to update the picture/title? */
});
});
});
</script>
<!-- THE test.php FILE -->
<?php
$productID = $_POST['productID'];
echo $productID;
?>
UPDATE:
I have tried editing the test.php to echo a function, but I am getting a 500 error every time I try using a Wordpress function inside the test.php file. I tried including the wp-blog-header.php file so the functions can run, but it still doesn't help. What am I doing wrong?
<!-- THE test.php FILE -->
<?php
include_once('wp-blog-header.php');
$productID = $_POST['productID'];
echo get_the_post_thumbnail($productID);
?>

Joomla Ajax jQuery

Hello!
I have a problem with my "custom" pagination for component in joomla.
I wanted to do list of user's articles which will shows for an example 3 posts per page. My goal was to make pagination without refreshing webpage. Ajax was the best choice. I'm fighting with it right now and have the most difficult problem so far (I tried to search answer of my problem several hours).
user.php
<div class="userRightContainer">
<div class="blogArticlesBlock">
<div class="userItemTagsBlock"><b>Debaty na forum użytkownika(<?php echo $joomla_rows; ?>)</b></div>
<?//artykuly joomla
?>
<div id="Joomla_block" class="Joomla_block">
<? require_once("Db_joomla.php") ?>
</div>
...
...
...
<script type="text/javascript">
function jm_previous(arg) {
if(arg < 0)
changePagination(0);
else
changePagination(arg);
}
function jm_next(argument) {
changePagination(argument);
}
function changePagination(pageId){
// $("#Joomla_block").html('');
jQuery.ajax({
type: "GET",
// url: "Db_joomla.php",
url: window.location.href,
data: { jm_start: pageId},
success: function(result){
alert(result);
$("#Joomla_block").html(result);
}
});
}
</script>
Db_joomla.php
defined('_JEXEC') or die;
//
$offset_jm=$_GET["jm_start"];
if(empty($offset_jm)) $offset_jm=0;
//
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select($db->quoteName(array('id', 'title', 'introtext', 'created_by', 'state')));
$query->from($db->quoteName('#__content'));
$query->where($db->quoteName('created_by') . ' LIKE ' . $db->quote(JRequest::getInt('id')));
$query->where('state', '1');
$query->setLimit($joomla_page,$offset_jm);
$db->setQuery($query);
$joomla=$db->loadObjectList();
$joomla_rows = $db->loadResult();
if($joomla_rows > 0){
foreach($joomla as $row) {
if ($row->created_by != JRequest::getInt('id')) continue;
?>
<div class="articlesBlock" style="margin: 5px;">
<!-- Avatar -->
<img src="<?php echo $this->user->avatar; ?>" alt="<?php echo htmlspecialchars($this->user->name, ENT_QUOTES, 'UTF-8'); ?>" style="width:50px; height:auto;border: 1px solid #ccc; float:left;margin: 5px;" />
<div class="blogArticlestTitle" style="padding-left:60px;font-weight:bold;word-wrap:break-word;"><?php echo $row->title ?></div>
<div class="blogArticlesDescription" style="padding: 5px;padding-top:10px;"><?php if (str_word_count($row->introtext) > 100) echo /* Wstawia komentarz i ogranicza tekst do stu znaków, po czym dodaje kropki.*/ substr(strip_tags($row->introtext), 0, 100) . "..."; else echo strip_tags($row->introtext);?>
</div>
<div class="CommentViewMore">
Przejdź do artykułu ›
</div>
</div>
<?php
/*
$item_counting++;
if($item_counting == 5) break;*/
}
//echo $pageNav->getListFooter( ); //Displays a nice footer
?>
<ul class="pager">
<li><<</li>
<li>>></li>
</ul>
<a class ="view_more_link"href="http://konfederaci.pl/index.php/component/komento/profile/id/<?php echo JRequest::getInt('id');?>" title="Artykuły użytkownika">Zobacz wszystkie artykuły</a>
<?php
}
else
{
echo "Ten użytkownik nie posiada żadnych postów na forum.";
}
Now some pictures:
From alert(result)
From google chrome's console
Ps:
If I choose "url : "Db_joomla.php" in this script it won't make anything. still doesn't work (and the same exception).

It's always a better idea to rely on Joomla's Ajax interface rather than implementing yours. It is super simple and very efficient and it works. We have written on how to use it here.
Essentially you will create/modify a simple module that will contain a function (that has the word Ajax at the end of its name) that will be used to process the call.
Then, you will need to add a simple jquery code that will call the module through the com_ajax interface. Note that you will need to make sure to have the module assigned to a menu item because you will need the ID of that menu item for the ajax call.

Simply practics:
Your ajax backend part should be contains only PHP code. (Get DB query).
Next this PHP should return JSON array with results.
You get this JSON for ajax request and push this data for your view.
For simply I use my plugin "plg_ajax" (after install see method onAjaxAjax()).
Example script post for this plugin with com_ajax:
type: "POST",
async: true,
url: "index.php?option=com_ajax&plugin=ajax&format=json",
dataType: "json",

Using Ajax to create session and echo results

I'm trying my best to get this to work. But AJAX is pretty new to me. So hang in there...
Ok, I've asked a couple of questions here about getting this issue that I'm having to work. I (We)'ve come a long way. But now the next issue is here.
I'm trying to echo a session in a div using AJAX.
The AJAX code is working, I can echo plain text to the div I want it to go. The only problem I have is it does not display the title of the item.
I have some items (lets say 3 for this example) and I would like to have the custom save the Items in a Session. So when the customer clicks on save. The ajax div displays the title. And if the custom clicks the 3rd item it show the 1st and 3rd item, etc...
My HTML:
<button type="submit" class="btn btn-primary text-right" data-toggle="modal" data-target=".post-<?php the_ID(); ?>" data-attribute="<?php the_title(); ?>" data-whatever="<?php the_title(); ?>">Sla deze boot op <span class="glyphicon glyphicon-heart" aria-hidden="true"></span></button>
My AJAX code:
$(".ajaxform").submit(function(event){
event.preventDefault();
$.ajax({
type: "POST",
url: "example.com/reload.php",
success: function(data) {
$(".txtHint").html(data);
},
error: function() {
alert('Not OKay');
}
});
return false;
});
My PHP reload.php:
<h4>Saved Items</h4>
<p>Blaat...</p>
<?php echo "Product Name = ". $_SESSION['item'];?>
I saw this code on here: I'm not using this code. Only wondering if I can use it for my code, and then how?
Change session.php to this:
<?php
session_start();
// store session data
$_SESSION['productName'] = $_POST['productName'];
//retrieve session data
echo "Product Name = ". $_SESSION['productName'];
?>
And in your HTML code:
function addCart(){
var brandName = $('iframe').contents().find('.section01a h2').text();
$.post("sessions.php", {"name": brandName}, function(results) {
$('#SOME-ELEMENT').html(results);
});
}
How I'm getting my title();:
<?php
// Set session variables
$_SESSION["item"][] = get_the_title();
?>
Is this some thing I can use? And could someone help me with the code?
Thanks in advance!

I'm not too sure on what exactly you're trying to accomplish, but here's a quick and dirty example of making an HTTP request (POST) with a name of a product, storing it in a PHP session, and outputting all product names in the session:
HTML
<p>Product A <button class="add-product" data-product="Product A">Add Product</button></p>
<p>Product B <button class="add-product" data-product="Product B">Add Product</button></p>
<p>Product C <button class="add-product" data-product="Product C">Add Product</button></p>
<div id="response">
</div>
JavaScript
$('.add-product').click(function() {
var productName = $(this).data('product');
$.post('addProduct.php', {productName: productName}, function(data) {
$('#response').html(data);
})
});
PHP (addProduct.php)
<?php
session_start();
if (!array_key_exists('products', $_SESSION) || !is_array($_SESSION['products'])) {
$_SESSION['products'] = [];
}
$productName = array_key_exists('productName', $_POST) ? (string) $_POST['productName'] : '';
if ($productName) {
$_SESSION['products'][] = $productName;
}
?>
<h4>Your added products:</h4>
<ul>
<?php foreach ($_SESSION['products'] as $product): ?>
<li><?php echo htmlspecialchars($product); ?></li>
<?php endforeach;?>
</ul>

POST session variables to a relational database with ajax

I am trying to add some data to a relational database, and would like the session_user_id to be the foreign key for that database. When a user clicks a button, I want to make a database entry with the session_user_id and some other information I have POSTed to the page. My ajax posts to the php webpage page which it is run on (meaning all my scripts are on the same page)
I am currently getting a Uncaught ReferenceError: $sess_user_id1 is not defined. The jquery is firing. While I would love to get the undefined variable fixed, overall this does not seem like a very direct way to to this, and has added a bunch of confusing variables, when all the variables I need were already in my PHP statement. Is there any way to trigger the PHP entry without going through ajax and having to define the variables again?
Here is my php, which is at the header which is on the same page as my JS and HTML:
<?php
$markerid = $_POST["id"];
$name = $_POST["name"];
$type = $_POST["type"];
$point = $_POST["point"];
$lat2 = $_POST["lat"];
$lng2 = $_POST["lng"];
$locationdescription = $_POST["locationdescription"];
$locationsdirections = $_POST["locationdirections"];
session_start();
if (!isset($_SESSION['sess_user_id']) || empty($_SESSION['sess_user_id'])) {
// redirect to your login page
exit();
}
$sess_user_id1 = $_SESSION['sess_user_id'];
if ((isset($_POST['usid'])) && (isset($_POST['usid']))) {
$user_id_follow = strip_tags($_POST['usid']);
echo $user_id_follow;
$query = "INSERT INTO markerfollowing ( userID, markerID, type )
VALUES ('$user_id_follow', '$markerid', '$type');";
$result = mysql_query($query);
if (!$result) {
die('Invalid query: ' . mysql_error());
}
mysql_close();
}
?>
Here is the HTML button:
<div class="btn pull-right">
<button class="btn btn-large btn-followmarker" type="submit"id="followmarker">Add me to the list</button>
</div>
Here is the jquery/ajax post:
<script/javascript>
$(document).ready(function () {
$("#followmarker").click(function(){
$.ajax({
type: "POST",
url: "", //
data: { usid: <?php echo '$sess_user_id1'; ?>},
success: function(msg){
alert("success");
$("#thanks").html(msg);
},
error: function(){
alert("failure");
}
});
});
});
</script
A sincere thanks for any and all help. I haven't worked with relational databases before.

<?php echo '$sess_user_id1'; ?>
is wrong. If you wont to get
data: { usid: 123} at $sess_user_id1 is 123, you should write
data: { usid: <?php echo "$sess_user_id1"; ?>}
See your html source code in your brawser. I think there is data: { usid: $sess_user_id1}, and javascript is not understand what is the $sess_user_id1
This is the only one problem that I can see now, but I don't understand your current task whole to say more.