How to assign the javascript variable value to php variable [duplicate]

Answer 1

Javascript works on the user's computer, PHP works on your server. In order to send variables from JS to PHP and vice versa, you need communication such as a page load.

Have a look here on what you can do: How to pass JavaScript variables to PHP? or more specifically the first answer (https://stackoverflow.com/a/1917626/1311593)

Answer 2

Javascript, is a client side script, Where as PHP is a server side script.

The only way you can send data to PHP is through redirection or ajax.

Answer 3

You cannot do that this way. You have to transmit values via $_GET, $_POST or $_COOKIE, after the script has been executed by client.

Answer 4

PHP is executed before javascript. You can't do that. PHP is server based, JavaScript is client based.

When PHP is finished executing, it outputs HTML. In the HTML there can be JavaScript code also. So PHP can 'control' JavaScript by outputting JavaScript code to the page, but not the other way around. You'd have to use Ajax-call for that.