I've a div <div id="single-home-container"></div> that displays a value from a jquery script. Can I use php to get that value so I can pass it into a mysql query?
Thanks
yes this is called AJAX. There are all kinds of AJAX functions in jQuery, in your case I think post would work great. This is the standard example from the jQuery doc:
$.post('ajax/test.php', $('#single-home-container').html(), function(data) {
$('.result').html(data);
});
Take a look here.
You should definitely take some time to learn the concept of AJAX before trying to use it.
Related
I'm currently working on a website and I would like to be able to do the following:
when clicking one of the links from the sideMenu the only thing I would like to change would be the content of my contentMain div and nothing else(page layout/design/etc)
Could anybody give me some general pointers on how I could achieve this in php?
Thank You in advance :D
This is a client-side change that cannot be accomplished using PHP. PHP is evaluated on the server-side, so once the page is loaded for the user, it has no control over what the user sees (unless you use client-side code to call PHP).
To accomplish this, you will need to use Javascript and/or jQuery.
Reference: https://developer.mozilla.org/en/JavaScript/
jQuery: http://jquery.org/
iFrame, frameset or AJAX all work for your case depending on what you are actually trying to achieve.
For AJAX calls (the most modern way out of the three that relies on Javascript) you can use a library such as jQuery.
http://api.jquery.com/category/ajax/
You can use ajax for this one. Using jQuery to detect the click on the link or use normal JavaScript onClick function. Then do the things like you want.
<a href="" id="my_link">My link<a>
<script type="text/javascript">
jQuery(document).ready(function(){
jQuery('#my_link').click(function(){
jQuery.ajax({
url: 'ajax page need to be called',
success: function(data) {
//do your operations on success
}
});
});
});
</script>
You can get more details on :
jQuery
jQuery Ajax
Hope this helps you
hi i am a new programer
i want to replace the content of current php page from another php page using ajax without refreshing page.
the content to be replaced is in div's.
both pages (current and another) has same div's
HTML Div's are:
<div class="category-container">
<div class="category-image"></div>
<div class="category-desc">#<p>text</p></div>
<div class="rating5" >Editors' rating: </div>
<div class="category-download-btn">Download</div>
<div class="category-buy-btn">Buy</div>
</div>
can anyone tell me how i can do it. it will be a great help.
also can you provide me ajax code not jquery.
thanks.
Have a look at jQuery's load, the section on loading page fragments:
The .load() method, unlike $.get(), allows us to specify a portion of the remote document to be inserted.
To get the div content on another page into an analogous div on the current page, use something like:
$('#content').load('other-page.php #content');
// ^ target div ^ same div on the other page
this is usual jquery.ajax call
function getVotes(id){
$.ajax({
type: 'get',
url: 'ay/templates/backend/_votes_partial.tpl.php',
data: 'charity_id=' + id,
success: function(data) {
$('#shadow').fadeIn('slow');
$('#popupContact').fadeIn('slow');
$('#content').html(data);
}
});
}
the simplest way would be:
$.get("pageurl",function(data){
$("yourdiv").html(data);
});
use jquery.ajax its easy... old way of making ajax calls was too much complicated, jquery made it easy,
you need to install jquery library,include it in ur head tag and go thorough following link for clear understanding, its much easy
Jquery.ajax
You're correct in assuming jquery is the way to go. I'm far from an expert, but this should help. The docs are straightforward.
Generally, jQuery follows the find something then do something approach.
Find something ---> watch for some action on some element (like changing a select box or clicking a link)
Do something ---> make an ajax call to the php page you want replace the current div with the new div
The jQuery documentation is here with an example at the bottom that shows exactly what you're trying to do http://api.jquery.com/jQuery.post/
Some other helpful jQuery commands for this task could be...
http://api.jquery.com/appendTo/
http://api.jquery.com/remove/
http://api.jquery.com/clone/
Hope this helps.
Hi I have web service that is written in php that outputs my data in xml format. I need that data to be send to an html page where I use javascript to display it. I want to know to how call that php service from my html page using javascript?
You can use JSON and PECL for data transfer with php
JSON
http://www.json.org
Scroll down to the page to see some options that you have for PHP.
If you wanted to do something fast and simple, you can use the jquery get or post call to acheive the disired result:
jQuery GET:
http://api.jquery.com/jQuery.get/
The get and the post both have a call-back function which can be used to accept the result of loading your php page and then you can determine how to display it.
You should have a way or create a way to access that by going to a specific URL. So just create some JS that will call that URL. Best to use JQuery to make things easier. Then just manipulate the data all you want.
Try that .ajax function from JQuery. There are some great examples at http://visualjquery.com/. You can also get more details on it from http://api.jquery.com/jQuery.ajax/
Example:
var html = $.ajax({
url: "some.php",
async: false
}).responseText;
You could also use JQuery's load function:
$('#result').load('ajax/test.html');
How about something like this using jQuery's load()?
$('#result').load('http://myWebService/serviceName.php');
<div id="result"/>
This is the second time I ask this question because in my first try I was totally misunderstood.
php, jQuery, Lightbox, Ajax GET and POST issue
What I am trying to achieve is simply to get the selected value from a dropdown list and send that by an ajax function to a php file that will run the necessary functions. So let's say I select Africa/Accra as timezone, onclick the ajax function is called and that will pass the data to the php file that will do the rest. No page refresh, nothing, just getting the data and send that with ajax. Is this possible? please to better understand me see my first try (link above).
I am not an experienced PHP programmer. I do not know about anything of Ajax, so propably I have just done everything wrong..so forgive me. Thanks
this is what you want:
$("#submitButton").click(function(){
var selectedValue = $("#IdOfDropdown").val();
$.get("test.php", { timezone: selectedValue } , function(data){
alert("Data Loaded: " + data);
});
return false;
});
You can also do a post instead of a get, here is a reference with a bunch of jquery ajax stuff
http://api.jquery.com/category/ajax/
To get the value you could use Javascript or Jquery.
In javascript you can say:
var selectedValue = document.getElementById("selectId");
selectedValue.options[selectedValue.selectedIndex].value;
Afterwards try and see how these guys do it:
AJAX TO PHP
This is one way to do it. The AJAX call could look different, but try and se if this solves your problem. :)
//Gerner
I'm building a page which loads the contents of our MySQL db for editing. Each row of the table is in a seperate, editable textarea on the page. I need the user to be able to update each row (ie send it's contents to the db) without reloading the whole page, with a click of a button that's responsible for that specific textarea.
I understand that such procedure would involve some JavaScript, but sadly I know none - I did all I could with php, so I need a pointing in that direction. Basically my question (I think) is how do I grab a text from an edited textarea and send it to MySQL without reloading the page. If I'm heading in the wrong direction I'd be more than willing to hear other suggestions.
Yes this will require javascript. Namely an async call to a PHP page you have. This is often called AJAX.
I hate to be the "use jquery" answer here but the hump of learning jQuery to use AJAX based calls is very low to the value you gain from calls like this.
The documentation has great examples and most of them are quite simple.
That's precisely what AJAX does: Asynchronous JavaScript and XML. It lets you send requests to the server without reloading the page.
I'd recommend starting with jQuery which you'll notice has a lot of support in the StackOverflow community, as well as elsewhere, and which makes cross-browser AJAX requests very easy.
With the jQuery script on your page, you can do something like this:
$("#id-of-the-button-the-user-will-click").click(function() {
$.post('/path/to/your/script.php', { field1: value1, field2: value2 }, function(data) {
// This function is called when the request is completed, so it's a good place
// to update your page accordingly.
});
});
Understanding the details will still require a thorough understanding of JavaScript, so really the best thing to do is dive in and start writing (and thus learning) a lot of JavaScript. AJAX is a fine place to start.
There is a good introduction to JavaScript at Opera. Jibbering covers the use of the XHR object, which is the usual way to send data to the server without leaving the page. Libraries such as YUI or jQuery can do some of the heavy lifting for you.
What you're looking for is AJAX. jQuery makes a lot of that easier; try starting here.
You can add JavaScript event to textarea:
onblur="sendUpdate(this.value)"
This event will happen when user has finished editing the text and leaves the input.
In example, "this" references current textarea component.
And then use Ajax, as previously mentioned. An example would be:
function sendUpdate (text) {
$.post('script.php', {textarea_value:text},function(){});
}
You need to make asynchronous calls to server from your script (javascript).Use ajax to achieve this.You need to have a look at using XMLhttp objects to communicate with the server /database from your client side script (javascript) . You need not submit the entire page using a button click,instead you can invoke the javscript code in a button click event or a onBlur event or a onTextChange event etc...
jQuery is a javascript framework library which helps you to reduce the number of lines of code to implement this. But its not necessary that you need to use jquery .You can do ajax calls without using jquery.Usage of jQuery will reduce the number of lines.
Check this
http://docs.jquery.com/Ajax/jQuery.ajax
You will definitely require JavaScript, and some method of sending a HTTP request to your PHP server without reloading the page. Generally, this is called AJAX.
It is probably best to use a JavaScript library, as AJAX is a bit complicated for beginning JavaScript developers. A good choice is JQuery, or MooTools
AJAX libraries usually use XMLHttpRequest or JSONP to implement the HTTP requests. Understanding those should make it a bit easier.
JQuery AJAX: http://docs.jquery.com/Ajax
MooTools AJAX: http://mootools.net/docs/core/Request/Request
Selecting the textarea element, updating it, would require use of the DOM (http://www.w3.org/DOM/). Most JavaScript frameworks now use an implementation of CSS or XSLT selectors to query the DOM.
JQuery Selectors: http://docs.jquery.com/Selectors
MooTools Selectors: http://mootools.net/docs/core/Utilities/Selectors
You can do this fine without JavaScript. Just have each textarea+button in its own <form>, then submit the form to a script that updates the database from the textarea value, and returns a:
204 No Content
status instead of 200 OK and a new page. The old page will stay put.
You can start by adding a jquery function to pick up any changes made ie:
$('#inputelement').on('input propertychange', function(){
alert("Alert to test jquery working");
});
You should then use AJAX to create a php script with the data (as php is how you update to the server) and send using either a GET or POST variable. Then use that script file to upload the changes to your server. e.g.
$('#yourElement').on('input propertychange', function(){
$.ajax({
method: "POST",
url: "updatedatabase.php",
data: {content: $("#yourElement").val()}
})
.done(function( msg ) {
alert( "Data Saved: " + msg );
});
});
Script upload:
session_start();
if(array_key_exists("content", $_POST)){
include("connection.php");//link to your server
$query = "UPDATE `users` SET `updateColumn`= '".mysqli_real_escape_string($link, $_POST['content'])."' WHERE id= ".mysqli_real_escape_string($link, $_SESSION['id'])." LIMIT 1";
if(mysqli_query($link, $query)){
echo "success";
}else {
echo "failed";
}
}
Try to read more about Ajax. There are a lot of libraries for it.