What libraries or how is the page implemented?

Question

PHP

Hello, how can I make this effect on the site when scrolling down? Can I break the blocks into sections and also change the content? Website: https://www.apple.com/airpods-pro/

Answer 1

To get rid of repeated submissions, you need to redirect the user so that he loads a new page and thus "reloads" the last action in the browser.

$sql = mysql_query("INSERT INTO `db_comments` ...");

header('Location: http://your.page.url/');
exit;

Answer 2

Не нашел сам вопрос (затерялся), но нашел ссылку на туториал, который там был указан (хоть его вспомнил)
Вот сам
туториал на ютуб