<?php
ini_set('display_errors', 1);
error_reporting(E_ALL | E_STRICT);

class Request {
    public function __construct() {
        echo '__construct' . PHP_EOL;
        file_put_contents('log.txt', '__construct' . PHP_EOL, FILE_APPEND);
    }
    public function __destruct() {
        echo '__destruct' . PHP_EOL;
        file_put_contents('log.txt', '__destruct' . PHP_EOL, FILE_APPEND);
    }
    public function shutdown() {
        echo 'shutdown';
        file_put_contents('log.txt', 'shutdown' . PHP_EOL, FILE_APPEND);
    }
}


$r = new Request();

register_shutdown_function(array($r, 'shutdown'));

while (true) {
    sleep(100);
}