How to pass JavaScript variable into a PHP function parameter?

I am trying to get a response from a Twilio API where I am facing complexity. I have a javascript variable called sid which is containing a string value.

var sid = value['sid']; // 'CA519c6aefde211131f2f44370d67607d4'

Now I need to call this variable into a PHP function as a parameter.

<?php echo $twilio->check_disputed($parameter) ?>

So, the $parameter is coming from the Javascript var sid.

I want to place the javascript variable as the parameter.

Thanks <3

Solution

In a very simple form/example you simply need to send an http request ( here done using the Fetch api ) to your PHP script and intercept that request. The following sends a POST request with a single parameter sid which is then passed to the Twilio method as per your requirement.

<?php
    if( $_SERVER['REQUEST_METHOD']=='POST' && !empty( $_POST['sid'] ) ){
        $sid=$_POST['sid'];
        exit( $twilio->check_disputed( $sid ) );
    }
?>
<!DOCTYPE html>
<html lang='en'>
    <head>
        <meta charset='utf-8' />
        <title>Your page</title>
    </head>
    <body>
        <h1>Do lots of things...</h1>
        
        <script>
            /*
                do whatever it is you do to create your variable sid
                - here it is explicitly declared rather than derived.
            */
            const sid='CA519c6aefde211131f2f44370d67607d4';
            
            let fd=new FormData();
                fd.set('sid',sid);
                
            fetch( location.href, { method:'post', body:fd } )
                .then(r=>r.text())
                .then(data=>{
                    alert(data)
                })
        </script>
    </body>
</html>