How can I save javascript variable value in a file using PHP or any other language?

Question

I would like to save a JavaScript variable value in a file.

For example,

<script>
    var ref = document.referrer;
</script>

I would like to save the variable ref value in a text file using PHP.

<?php
    $file = fopen("ref.txt", "a+") or die("Unable to open file!");
    fwrite($file, ref);
    fclose($file);
?>

How can I do it?

Does this answer your question? [How do I pass JavaScript variables to PHP?](https://stackoverflow.com/questions/1917576/how-do-i-pass-javascript-variables-to-php) — Dan O, Jun 26 '20 at 23:27
there are many many Stack Overflow questions regarding passing data to PHP from JavaScript. which of them have you researched and why did they not solve your particular problem? — Dan O, Jun 26 '20 at 23:27

Somen · Accepted Answer · 2020-06-26T17:57:42.813

0

You can do this by --

AJAX : Using AJAX you can easily pass the JS variable to PHP.
GET/POST : first you have to create a form with a text box. Then you have to set the value of that text box from your JS code like $('#id').val(ref). AND then you have to submit the form to a PHP page where you can get the value by simple calling $_GET['data'] or $_POST['data'].

edited Jun 26 '20 at 17:57

answered Jun 26 '20 at 17:45

Somen

Thanks a lot. After reading your comment I learned AJAX and now I know how to post data to php. – Praveen Kumar Oct 20 '20 at 16:21

1 Answers1