How to pass value JavaScript variable to PHP?

Question

Passing value JavaScript variable to PHP.

Example

JavaScript

Var ffffd=\'aaaa\'

PHP

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Answer 1

I have tested the following code and it have worked. So please test this code:

function aa()
{
    var ffffd='aaaa';
    window.location.href="newpage.php?Result=" +ffffd;
}

click a button then will call aa() function and will go newpage.php where we get ffffd variable value in Result variable

newpage.php:

extract($_GET);
echo $Result;

Answer 2

One way you can do that is to put it in the cookie:

var ffffd = 'aaaa';
document.cookie = "ffffd="+ffffd; // the ffffd in the "" is the name of the cookie

PHP

$ffffd = $_COOKIE['ffffd'];
if (ffffd == "aaa") { do something... }

Answer 3

In JS:

 $.post('ajax.php',{'ffffdd' : ffffdd}, function(data){
 });

In PHP

 if(isset($_POST['ffffdd'])) $ffffdd = $_POST['ffffdd'];

Answer 4

Javascript is a Client side scripting language that is only executed after the page is fully loaded. PHP on the other hand is an on-demand compiling script. It parses the PHP within the file and outputs the resulting HTML to the user's Browser.