Assign Javascript variable to PHP Variable

[123456]

hi all,

i really need urgent help ... i have select option on my website.When i choose select option  the value of selecet option which i get in the javascript want to assign to PHP variable .So that i can use that in the query.

Urgent reply is always appriciated

[skali]

You will need to refresh your page and send the value of selection option in the URL. This can be achieved through javascript :

 

var selected_value = document.your_form.select_name.options[document.your_form.select_name.options.selectedIndex].value;
location = 'abc.php?id='+selected_value;

 

Now on php page you can use php code:

<?php
echo $_GET['id'];
?>

[123456]

Thanks for ypur reply ...

but i dont want to refresg th page .i want to do all this without refresing page. Is there any otherv option to do this?

[todayme]

I tried to do this using Javascript I could get the value of the dropdown boxes but couldnt pass them to php.  Someone kept on saying AJAX LOL.

[OOP]

As far as I know you can not assign the result of client side script to a server side script unless you make a new request to the server.

[Jenk]

As far as I know you can not assign the result of client side script to a server side script unless you make a new request to the server.

Correct.

[nloding]

Javascript is exclusively on the client end (the users computer) and PHP is on the server end exclusively (the server itself) and they do not interact backwards -- that is, the server sends scripts to the client, but not the other way around.

 

You either have to use the javascript URL method posted above, or use ajax, where you're making a call using that URL method, but only refreshing a <div> or <span>, not the entire page.  If you have to have it with no page refreshes, then you need to use Ajax.

 

Check out the Apress book "Beginning Ajax with PHP From Novice to Professional" ... it explains how to create Ajax objects and how to use them with PHP to query databases and such.