$('#test-test_id').change(function() {
var myValue = $(this).val();
});
// $getMyValue = $(this).val();
For example, by using the code above, I want to pass $(this).val to the php variable on the same page. How is this possible?
windown.location can reload page with parameters . You can try that in sending val to php variable like below...
<input type="text" id="test-test_id">
<?php
if(isset($_GET["val"])){
$sent = $_GET["val"];
echo "<h2>".$sent."</h2>";
}
?>
<script type="text/javascript">
$('#test-test_id').change(function() {
var myValue = $(this).val();
window.location = '?val=' + myValue; //redirect page with para ,here do redirect current page so not added file name .
});
Update code for without refresh
$('#test-test_id').change(function() {
var myValue = $(this).val();
$.get("",{val:myValue},function(data){
$("body").html(data);
});
//you can try with many option eg. "$.post","$.get","$.ajax"
//But this function are not reload page so need to replace update data to current html
});
</script>
What you want to do is a bit complicated, first you must make an AJAX request where you pass the variable from client to server, like this:
$.post('/', { variable: "your_value_here" }, function() {
alert('Variable passed');
});
This simple code, made in Javascript sends a POST Request to a URL that you pass to function as the first parameter, in this case we pass to $.post the same page. Now, in PHP you must handle the POST request:
session_start(); // We start a session where we'll set the value of variable.
if(isset($_POST['variable'])) {
$_SESSION['your_var'] = $_POST['variable'];
} else {
/* Your page code */
}
You can also register the variable in the database, but if it's a temporary variable you can just register it in the session. Remember to use session_start() in every page before using $_SESSION global variable.
Helpful documentation:
jQuery.post() ,
PHP Sessions
Related
I am trying to read the post request parameters from my HTML. I can read the get request parameters using the following code in JavaScript.
$wnd.location.search
But it does not work for post request. Can anyone tell me how to read the post request parameter values in my HTML using JavaScript?
POST data is data that is handled server side. And Javascript is on client side. So there is no way you can read a post data using JavaScript.
A little piece of PHP to get the server to populate a JavaScript variable is quick and easy:
var my_javascript_variable = <?php echo json_encode($_POST['my_post'] ?? null) ?>;
Then just access the JavaScript variable in the normal way.
Note there is no guarantee any given data or kind of data will be posted unless you check - all input fields are suggestions, not guarantees.
JavaScript is a client-side scripting language, which means all of the code is executed on the web user's machine. The POST variables, on the other hand, go to the server and reside there. Browsers do not provide those variables to the JavaScript environment, nor should any developer expect them to magically be there.
Since the browser disallows JavaScript from accessing POST data, it's pretty much impossible to read the POST variables without an outside actor like PHP echoing the POST values into a script variable or an extension/addon that captures the POST values in transit. The GET variables are available via a workaround because they're in the URL which can be parsed by the client machine.
Use sessionStorage!
$(function(){
$('form').submit{
document.sessionStorage["form-data"] = $('this').serialize();
document.location.href = 'another-page.html';
}
});
At another-page.html:
var formData = document.sessionStorage["form-data"];
Reference link - https://developer.mozilla.org/en-US/docs/Web/API/Window/sessionStorage
Why not use localStorage or any other way to set the value that you
would like to pass?
That way you have access to it from anywhere!
By anywhere I mean within the given domain/context
If you're working with a Java / REST API, a workaround is easy. In the JSP page you can do the following:
<%
String action = request.getParameter("action");
String postData = request.getParameter("dataInput");
%>
<script>
var doAction = "<% out.print(action); %>";
var postData = "<% out.print(postData); %>";
window.alert(doAction + " " + postData);
</script>
You can read the post request parameter with jQuery-PostCapture(#ssut/jQuery-PostCapture).
PostCapture plugin is consisted of some tricks.
When you are click the submit button, the onsubmit event will be dispatched.
At the time, PostCapture will be serialize form data and save to html5 localStorage(if available) or cookie storage.
I have a simple code to make it:
In your index.php :
<input id="first_post_data" type="hidden" value="<?= $_POST['first_param']; ?>"/>
In your main.js :
let my_first_post_param = $("#first_post_data").val();
So when you will include main.js in index.php (<script type="text/javascript" src="./main.js"></script>) you could get the value of your hidden input which contains your post data.
POST is what browser sends from client(your broswer) to the web server. Post data is send to server via http headers, and it is available only at the server end or in between the path (example: a proxy server) from client (your browser) to web-server. So it cannot be handled from client side scripts like JavaScript. You need to handle it via server side scripts like CGI, PHP, Java etc. If you still need to write in JavaScript you need to have a web-server which understands and executes JavaScript in your server like Node.js
<script>
<?php
if($_POST) { // Check to make sure params have been sent via POST
foreach($_POST as $field => $value) { // Go through each POST param and output as JavaScript variable
$val = json_encode($value); // Escape value
$vars .= "var $field = $val;\n";
}
echo "<script>\n$vars</script>\n";
}
?>
</script>
Or use it to put them in an dictionary that a function could retrieve:
<script>
<?php
if($_POST) {
$vars = array();
foreach($_POST as $field => $value) {
array_push($vars,"$field:".json_encode($value)); // Push to $vars array so we can just implode() it, escape value
}
echo "<script>var post = {".implode(", ",$vars)."}</script>\n"; // Implode array, javascript will interpret as dictionary
}
?>
</script>
Then in JavaScript:
var myText = post['text'];
// Or use a function instead if you want to do stuff to it first
function Post(variable) {
// do stuff to variable before returning...
var thisVar = post[variable];
return thisVar;
}
This is just an example and shouldn't be used for any sensitive data like a password, etc. The POST method exists for a reason; to send data securely to the backend, so that would defeat the purpose.
But if you just need a bunch of non-sensitive form data to go to your next page without /page?blah=value&bleh=value&blahbleh=value in your url, this would make for a cleaner url and your JavaScript can immediately interact with your POST data.
You can 'json_encode' to first encode your post variables via PHP.
Then create a JS object (array) from the JSON encoded post variables.
Then use a JavaScript loop to manipulate those variables... Like - in this example below - to populate an HTML form form:
<script>
<?php $post_vars_json_encode = json_encode($this->input->post()); ?>
// SET POST VALUES OBJECT/ARRAY
var post_value_Arr = <?php echo $post_vars_json_encode; ?>;// creates a JS object with your post variables
console.log(post_value_Arr);
// POPULATE FIELDS BASED ON POST VALUES
for(var key in post_value_Arr){// Loop post variables array
if(document.getElementById(key)){// Field Exists
console.log("found post_value_Arr key form field = "+key);
document.getElementById(key).value = post_value_Arr[key];
}
}
</script>
function getParameterByName(name, url) {
if (!url) url = window.location.href;
name = name.replace(/[\[\]]/g, "\\$&");
var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
results = regex.exec(url);
if (!results) return null;
if (!results[2]) return '';
return decodeURIComponent(results[2].replace(/\+/g, " "));
}
var formObj = document.getElementById("pageID");
formObj.response_order_id.value = getParameterByName("name");
One option is to set a cookie in PHP.
For example: a cookie named invalid with the value of $invalid expiring in 1 day:
setcookie('invalid', $invalid, time() + 60 * 60 * 24);
Then read it back out in JS (using the JS Cookie plugin):
var invalid = Cookies.get('invalid');
if(invalid !== undefined) {
Cookies.remove('invalid');
}
You can now access the value from the invalid variable in JavaScript.
It depends of what you define as JavaScript. Nowdays we actually have JS at server side programs such as NodeJS. It is exacly the same JavaScript that you code in your browser, exept as a server language.
So you can do something like this: (Code by Casey Chu: https://stackoverflow.com/a/4310087/5698805)
var qs = require('querystring');
function (request, response) {
if (request.method == 'POST') {
var body = '';
request.on('data', function (data) {
body += data;
// Too much POST data, kill the connection!
// 1e6 === 1 * Math.pow(10, 6) === 1 * 1000000 ~~~ 1MB
if (body.length > 1e6)
request.connection.destroy();
});
request.on('end', function () {
var post = qs.parse(body);
// use post['blah'], etc.
});
}
}
And therefrom use post['key'] = newVal; etc...
POST variables are only available to the browser if that same browser sent them in the first place. If another website form submits via POST to another URL, the browser will not see the POST data come in.
SITE A: has a form submit to an external URL (site B) using POST
SITE B: will receive the visitor but with only GET variables
$(function(){
$('form').sumbit{
$('this').serialize();
}
});
In jQuery, the above code would give you the URL string with POST parameters in the URL.
It's not impossible to extract the POST parameters.
To use jQuery, you need to include the jQuery library. Use the following for that:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.1/jquery.min.js" type="text/javascript"></script>
We can collect the form params submitted using POST with using serialize concept.
Try this:
$('form').serialize();
Just enclose it alert, it displays all the parameters including hidden.
<head><script>var xxx = ${params.xxx}</script></head>
Using EL expression ${param.xxx} in <head> to get params from a post method, and make sure the js file is included after <head> so that you can handle a param like 'xxx' directly in your js file.
I have a file called lightstatuspage.php and within it, I have HTML, JavaScript and PHP code. I have used some variables within the JavaScript part of the code and I am trying to send these variables to the server by passing them to the PHP part of the code. However, this is not working.
I am using $.post("lightstatuspage.php", slider_val); and then in the PHP part, I am calling the variable by doing $_GET['rangeslider_val'];.
What am I doing wrong and what can I do differently to get the variable from JavaScript and send it to the server?
function show_value(x)
{
document.getElementById("slider_value").innerHTML=x;
event.preventDefault();
var slider_val = x;
var query = new Parse.Query(Post);
query.first({
success: function(objects){
objects.set("slider_val", slider_val);
objects.setACL(new Parse.ACL(Parse.User.current()));
return objects.save();
window.location.href = "lightstatuspage.php?rangeslider_val=" + slider_val;
}
})
}
The PHP code is:
<?php
$_GET['rangeslider_val'];
print($rangeslider_val);
?>
First Add Jquery
<script src='https://code.jquery.com/jquery-1.11.3.min.js'></script>
to the end of page before closing body tag.
To send Javascript variable to PHP. the best way is to use Ajax. and add the following code to your javascript.
Do not forget that the below code should be on an event. For example on a button click or something like that
$( document ).ready(function() {
var x = $('#input1').val();
//or var x= 15;
$.post("lightstatuspage.php",
{
'rangeslider_val': x
},
function(data, status){
//alert("Data: " + data + "\nStatus: " + status);
// you can show alert or not
});
});
and in php, you can use:
$value = $_POST['field1'];
now your variable is in $value in php.
P.S:
Backend Page and HTML page should be on same domain or you have to check Cross-Origin Resource Sharing
Second Solution
as the User accepted this solution here would be the code:
$.get("lightstatuspage.php?rangeslider_val=" + slider_val,function(res) {
console.log(res);
});
the second way is only the difference between POST and GET method
Third Solution
if you don't want to use Jquery in your project and you need pure javascript you can use below code
var str = "Send me to PHP";
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
console.log(xmlhttp.responseText);
}
};
xmlhttp.open("GET", "lightstatuspage.php?rangeslider_val=" + str, true);
xmlhttp.send();
Change the order of the last 2 lines of your JS function. You are returning from the function before changing the page's location.
you forgot to store variable on print
<?php
$rangeslider_val = $_GET['rangeslider_val'];
print($rangeslider_val);
?>
You call $_GET but you don't assign the value to the variable $rangeslider_val in PHP and you are returning in JavaScript before calling the PHP script. Also you mentioned that you want to use $.post from clentside if you do it this way you have to use PHP $_POST to get it from there.
I have a .js file hosted on domain1.com, but for this to work correctly I need to add a PHP code at the beginning. The reason for this is to bypass some restriction on Safari for my script and it requires me to create a session. The PHP code creates a session through a url to domain2.com. There is no browser redirection or anything, the user stays in the domain1.com. I want to have a single .js file in domain1.com so maybe an AJAX solution is what I need. Here it is:
<?php
session_start();
if (!isset($_SESSION['isIFrameSessionStarted']))
{
$_SESSION['isIFrameSessionStarted'] = 1;
$redirect = rawurlencode('http://' . "{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}");
header('Location: domain2.com/start-session.php?redirect=' . $redirect);
exit;
}
?>
The start-session.php file is hosted on domain2.com does not need any changes, it contains this:
<?php
session_start(); // create the session cookie
$redirect = rawurldecode($_GET['redirect']);
header('Location: ' . $redirect); // redirect back to domain
exit;
?>
Let me combine what you requested in comments:
I have a .js file hosted on domain1 ... I want to have a single js file and I can't put PHP into that ... the whole purpose of this is for domain1 to not have any php code or php file. ... The reason is because I want it cross-domain and the session to be created from domain2.
It sounds like your issue might be related to the Safari iFrame session cookie problem, especially because you have if (!isset($_SESSION['isIFrameSessionStarted'])) in one of your code blocks. I will continue with this assumption.
Summary of the problem for other readers:
Upon embeding an IFrame from one domain into a website of a different domain, you will quickly realise that Internet Explorer and Safari are blocking the cookies (and thus the session variables) of the website inside the IFrame (ref).
Attempted solutions that didn't pan out:
Safari 3rd party cookie iframe trick no longer working?
Internet Explorer & Safari: IFrame Session Cookie Problem
IFrame must die
Safari: Setting third party iframe cookies
PHP Session in iFrame in Safari and other browsers
My solution:
Essentially, PHP session "hijacking". It works surprisingly well where the above solutions failed. This is the essential solution. Please do any security enhancements* and URL-prettifying you like. Basically, we retrieve the PHP session ID through redirects and pass this to the iframe. Instructions are in the comments.
In your domainA.com head place this:
<script src="session.js"></script>
session.js (on domainA.com):
// Location of the domain B session starter
var sessionScriptURL = "http://domainB.com/start-session.php";
var refQSparam = "phpsessionid";
// Check if we have the phpsessionid in the query string
var phpsessionid = getParameterByName(refQSparam);
if(phpsessionid === null) {
// Not in the query string, so check if we have it in session storage
var sessionStore = sessionStorage.getItem(refQSparam);
if(sessionStore === null) {
// We have no session storage of the PHP session ID either, redirect to get it
top.location = sessionScriptURL + "?redirect=" + encodeURIComponent(self.location.href);
} else {
// phpsessionid was found in session storage. Retrive it
phpsessionid = sessionStore;
}
} else {
// Save the phpsessionid to session storage for browser refresh
sessionStorage.setItem(refQSparam, phpsessionid);
// Optional: Redirect again to remove the extra query string data
}
// Helper to get QS values
function getParameterByName(name) {
return decodeURIComponent((new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.search)||[,""])[1].replace(/\+/g, '%20'))||null;
}
session-starter.php (on domainB.com):
<?php
session_start(); // create the session cookie
$redirect = rawurldecode($_GET['redirect']);
// redirect back with the php session ID
// Optional: encode this information
$href = $redirect . '?phpsessionid=' . session_id();
header('Location: ' . $href);
exit;
HTML (in the body, on domainA.com):
Append PHP session information to the iframe src.
<script>
document.write('<iframe src="http://domainB.com/embedded-script.php?phpsessionid='+phpsessionid+'"></iframe>');
</script>
embedded-script.php (on domainB.com, in an iframe):
<?php
// Use the phpsessionid passed in
$phpsessionid = rawurldecode($_GET['phpsessionid']);
// REF: http://php.net/manual/en/function.session-id.php
function session_valid_id($session_id) {
return preg_match('/^[-,a-zA-Z0-9]{1,128}$/', $session_id) > 0;
}
// Check that this is potentially a valid session ID
if(session_valid_id($phpsessionid)) {
// Set the session to the one obtained in session-start.php
session_id($phpsessionid);
}
session_start(); // Only call this after session_id()!
// Rest of your code
*Considerations:
Don't actually use document.write, use jQuery or document selectors.
Encode the PHP session ID
Perform another redirect back to the base URL of domainA.com to remove the ?phpsessionid= in the URL for a cleaner look.
If you decide to call session-starter.php with AJAX instead, you will get a new PHP session ID every time for the same reason. The iframe will successfully use this session ID, but if you open a new page to domainB.com, the session will yet again be different.
If you want to run PHP within a file extended with .js, you can do this by telling your apache web server. Add the following directive to the .htaccess or directly to the apache config:
AddType application/x-httpd-php .js
After this is done, your server will run the included PHP code as soon as the file is requested from the server.
Update:
If you want to use sessions with JavaScript, you can do this with an AJAX solution. For this implement a web service on the server which should store the session values. Programming language for implementation can be PHP or another one which can be run by the web server. Request the web service with JavaScript. Here is an answer with an example.
If you want to redirect in Javascript, you can't use a PHP redirect which you have called from AJAX. You can pass the URL you create in PHP and send it back to JavaScript and do the redirect from there. You can do something like:
PHP:
session_start();
if (!isset($_SESSION['isIFrameSessionStarted'])) {
$_SESSION['isIFrameSessionStarted'] = 1;
$redirect = rawurlencode('http://' . "{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}");
echo json_encode(array('url' => $redirect));
}
JavaScript:
$.get('phpfile', function(result) {
if (!result) return;
var data = JSON.parse(result);
window.location.href = decodeURIComponent(data.url);
});
Don't know what you're trying to achieve exactly but let's say you want to go from php to js and back to php you could trying something like this:
Solution 1: Using XMLHttpRequest
In PHP (domain1.com):
<?php
$parameter = ""; //If you'll like to add a parameter here
echo "<script type='text/javascript'>window.addEventListener('DOMContentLoaded',". "function () { goToJS('$paramter');});</script>";
?>
In JS:
window.goToJS = function (parameter) {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState === 4 && xmlhttp.status === 200) {
//You can redirect back to a php file here
document.location.href = "domain1.com";
//You can view feedback from that php file you sent the stuff to here - just for testing
alert("feedback" + xmlhttp.responseText);
}
}
xmlhttp.open('GET', 'http://domain2.com/start-session.php?q=' + parameter, true);
xmlhttp.send();
}
Not sure about your redirect links and stuff but yeah this should pretty much work. Did something similar a while back
Solution 2: Using ajax
Using ajax you could have a JS script as follows. (type could be POST or GET, Used an example where you sent some json to the php file. Can change the data sent if you properly describe to me what you wish to send. Alternatively could be null also
In JS:
function init_() {
$.ajax({
type: 'POST',
url: 'http://domain2.com/start-session.php',
data: {json: JSON.stringify(selectedEvent)},
dataType: 'json'
}).done(function (data) {
console.log('done');
console.log(data);
}).fail(function (data) {
console.log('fail');
console.log(data);
});
}
In PHP:
Let's say you sent a javascript json to PHP. You could use it in PHP as follows:
<?php
$status_header = 'HTTP/1.1 ' . 200 . ' ' . 'OK';
header($status_header);
header('Content-type: text/javascript');
$json = json_decode($_POST['json']); //Do whatever you want with the json or data sent
echo "This is the returned data"; //Echo returned data back to JS or wherever
?>
why don't just use script directly (if you put this script on top of file it will wait the script to finish creating session in domain2 anyway. (I guess you have iframe in domain1 that call to domain2?)
<script src="http://domain2.com/start-session.php"></script>
USe jquery and jqxhr object for this request, no need send browser to second server, from domain1 you can request to browser load page to init session, and your client never see that.
//include jquery min library and do next code
$(document).ready(function (){
var jqxhr = $.get( "http://domain2.com/start-session.php", function() {
alert( "success" ); //some action for success
})
.done(function() {
alert( "second success" ); //when all is done (success done)
})
.fail(function() {
alert( "error" ); //some action for error
})
.always(function() {
alert( "finished" ); //some end action for anycase
});
});
you can delete .done function, .fail function, and always function as you wish.
NOTE: ready function is to make sure, that domain1 page completely load, and then run script.
reference https://api.jquery.com/jquery.get/
This question already has answers here:
How do I pass variables and data from PHP to JavaScript?
(19 answers)
Closed 8 years ago.
There have been far too many questions on this subject but I still fail to understand.
Case:
Hyperlinked image
OnClick of image: Check if session exists
If session exist, open link
If session does not exist, show login form
onclick is calling a JavaScript function:
var my_global_link = '';
var check = '<?php echo $_SESSION["logged_in"]; ?>';
function show_login( link ) {
if(check == 1)
{
window.location = link;
}
else
{
my_global_link = link;
// .. then show login modal that uses 'js/whitepaper-login.js'
document.getElementById('light').style.display='block';
document.getElementById('fade').style.display='block';
document.getElementById('fade').scrollIntoView(true);
}
}
Global variable is being saved in another php file as :
$_SESSION['logged_in'] = 1;
I am unable to capture the session value in the var check. Can you advise?
Using jQuery here is a simple example of how to get a PHP $_SESSION into your JavaScript:
session.php
<?php
session_start();
$_SESSION['foo'] = 'foo';
echo $_SESSION['foo']; // this will be echoed when the AJAX request comes in
?>
get_session.html (assumes jQuery has been included)
<script>
$(function() {
$('a').click(function(event){ // use instead of onclick()
event.preventDefault(); // prevents the default click action
// we don't need complex AJAX because we're just getting some data
$.get('session.php', function(sessionData) {
console.log( sessionData ); // session data will be 'foo'
});
});
});
</script>
click
If this is successful you'll see the data and can use it in other JavaScript functions by passing the data appropriately. I often find it handy to json_encode() session data, returning JSON to be used by JavaScript, but there is no need to in a simple example such as this one.
Make the request to someone file.php
$( document ).ready(function(){//run when DOM is loaded
$.post("file.php", //make request method POST to file.php
function(data){ //callback of request is data
var arr = jQuery.parseJSON(data); //make json decoding
if(arr.logged == 1) //arr.logged is value needs
#do
})
})
file.php
<?php
session_start(); //start session for my dear friend Jay Blanchard
$_SESSION['logged_id'] = 1; //init value for example
$array = array('logged' => $_SESSION['logged_id']);//creat array for encoding
echo json_encode($array); //make json encoding for call back
?>
your javascript is not a very good solution, as it can be hacked easily. One can simply change the value of check to whatever one likes, and even without a login one would be able to access the link of the picture.
A better implementation would probably be something like:
<img src="img.png" alt="" />
checklogin.php would then verify the $_SESSION variable. If validated, you can use header("Location: something.html"); to redirect to where you want to bring the user. If not logged in, you can instead redirect to the login page: header("Location: login.php");
#Sarah
You have to first call the php file via ajax and set the javascript variable as the result. Since the javascript is a client side scripting language hence it can't read server side PHP script.
Hence on click call javascript function
function someFunc(){
//Fire Ajax request
//Set check variable
//and perform the function you want to ...
}
<?php include "sess.php"; ?>
<script type="text/javascript">
var my_global_link = 'testr.com';
var check = '<?php echo $_SESSION["logged_in"]; ?>';
function show_login( link ) {
if(check == 1)
{
window.location = link;
}
else
{
my_global_link = link;
document.getElementById('light').style.display='block';
document.getElementById('fade').style.display='block';
document.getElementById('fade').scrollIntoView(true);
}
}
</script>
<a href="#" onclick="show_login('test')" >test</a>
file1.php
<?php
session_start();
$_SESSION["logged_in"] = 1;
?>
sess.php
I have done this using two files. You may have not included session file I guess. Its working fine for me.
I'm trying to pass a JS variable to php without a form. In simple words I got the current slide of the flexslider and I passed like a variable in javascript for after convert it to PHP variable and redirect it to the step "step_3.php".
I tried to used an ajax but it didn't work.
step_2.php
Next Step
<script>
$( document ).ready(function() {
$("#btn_next").click(function() {
var face = $('.flexslider').data('flexslider').currentSlide;
/*transform var face to PHP and redirect to step_3.php */
});
</script>
step_3.php
get the value
If any could help me i would appreciate a lot
What about this?
$( document ).ready(function() {
$("#btn_next").click(function() {
var face = $('.flexslider').data('flexslider').currentSlide;
location.href = "step_3.php?face="+face;
});
And then in step_3.php you process the face value and continue doing your things
You could redirect with javascript by setting the url like this window.location.href = url.com and tack a GET variable onto the end of it like window.location.href = url.com?var=value and on the page you redirect to, get the variable in PHP with
$var = $_GET['var'];