test_destructor.php

<?php
class DB 
{
  public function burn(string $data) 
  {
    if(empty($data)) throw new \Exception(sprintf("Wrong data, %s given" . PHP_EOL, $data));
    echo $data . PHP_EOL;
  }
}

global $db;
$db = new DB();

class GoodDayToDie
{
  protected $data;

  public function __construct()
  {
    $this->data = [
      'good data',
      '0',
      new \stdClass(),
      42,
    ];
  }

  public function test()
  {
    global $db;
    foreach ($this->data as $val) {
      try {
        $db->burn($val);  

      } catch(\Exception $e) {
        echo $e->getMessage();


      } catch (\Error $e) {
        echo "Error!" . PHP_EOL;

      }
    }
  }

  public function __destruct()
  {
    global $db;
    foreach ($this->data as $val) {
      try {
        $db->burn($val);  

      } catch(\Exception $e) {
        echo $e->getMessage();


      } catch (\Error $e) {
        echo "Error!" . PHP_EOL;

      }
    }
  }
}


for($i = 0; $i < 1000; $i++) {
  $test = new GoodDayToDie();
  $test->test();
  $test = null;
}