Passing value JavaScript variable to PHP.
Example
JavaScript
Var ddd='aaaa'
PHP
if (ddd="aaaa"){do somehting...}
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2What are you asking exactly? You could submit a form or make an ajax request...no.good.at.coding– no.good.at.coding2011-05-23 03:36:13 +00:00Commented May 23, 2011 at 3:36
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I would do an ajax request here.webdad3– webdad32011-05-23 03:39:16 +00:00Commented May 23, 2011 at 3:39
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Could you pass it in the URL to the PHP code, an ajax post to domain.com/?ddd=aaaa A code example would be good!addedlovely– addedlovely2011-05-23 03:48:37 +00:00Commented May 23, 2011 at 3:48
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4 Answers
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.
2 Comments
yitwail
not strictly true; Javascript can be executed while the page is loaded, if there's a
<script type='text/javacript'> block within the <body> tag for example. To ensure Javascript executes after page load, it would have to be in a onload handler.
Craig White
True, as the document is downloaded and generated, it parses any script tags methodically inline with the rest of the html. This allows you do to do things like
document.write('string');In JS:
$.post('ajax.php',{'dddd' : dddd}, function(data){
});
In PHP
if(isset($_POST['dddd'])) $dddd = $_POST['dddd'];
1 Comment
Matthieu Napoli
I really think you are not helping the OP by giving him a (jquery dependent) quick and dirty code without any explanation.
One way you can do that is to put it in the cookie:
var ddd = 'aaaa';
document.cookie = "ddd="+ddd; // the ddd in the "" is the name of the cookie
PHP
$ddd = $_COOKIE['ddd'];
if (ddd == "aaa") { do something... }
Comments
I have tested the following code and it have worked. So please test this code:
function aa()
{
var ddd='aaaa';
window.location.href="newpage.php?Result=" +ddd;
}
click a button then will call aa() function and will go newpage.php where we get ddd variable value in Result variable
newpage.php:
extract($_GET);
echo $Result;
