Why does the process hang (not terminate) after the completion of the php script?

Question

PHP

Good day!
There is a code:

<?php
echo 'Процесс данного скрипта не удаляется сразу после завершения выполнения скрипта<br>';
echo 'функция exit также не помогает :(';
exit;

After running this script on the hosting, a process is created, but this process does not end with the completion of the script, but hangs for another 5 minutes (hosting limitation), you either have to wait for its completion, or terminate (kill) through the console, or instead of exit, use posix_kill(getmypid(), SIGTERM);
That is, exit does not helps.
In connection with what this can be and how to fix it?
Could this be a server issue, server settings, or PHP settings?

Answer 1

And in what form is PHP worth it?