How to pass variable value from js to php?

Question

PHP

Goodnight! I click on the button and the value of the button's parent ID is passed to the variable. There are a lot of buttons and IDs, therefore, too. Now the task is to pass the values ​​of these IDs to the php file. Broke my head over this question. Tried through cookies, using the cookie plugin, but it does not see the variable and does not add cookies. I think it is necessary somehow through Ajax, but I am a complete zero in it. Help mi

$.cookie('cookie_nam', '$id');

Answer 1

You can use ajax, and accept $_POST or $_GET

Answer 2

$.cookie('cookie_nam', '<?php echo $id; ?>');
And what does it mean

but it doesn't see the variable and doesn't add the cookie.

?
jquery.page2page.ru/index.php5/%D0%A0%D0%B0%D0%B1%...

Answer 3

From JS to PHP:
Through jQuery framework and plugin
$.cookie('var_name', 'value', { expires: 10, path: '/', domain: 'mydomain.ru', secure: false, });
echo $_COOKIE['var_name'];
From PHP to JS:
setcookie('var_name', 'value');
console.log($.cookie('var_name'));
Read more about PHP cookies here .