Description:
------------
The test script hangs with eating one core completely. Even after the execution time limit is exceeded, php does not abort.
I had to kill php-cgi.exe via task manager.

This might allow DoS attacks to shared hosters where an attacker can upload its own code.

I guess that there is a ping-pong between the error_handler and the exception_handler (deprecation warning of static call to non-static method and instanciating an object of unknown class).

Test script:
---------------
<?php

// php.ini: error_reporting = E_ALL | E_DEPRECATED | E_STRICT

 class ErrorHandling {

  public function error_handler(int $errno, string $errstr, string $errfile, int $errline): void {
   $bla = new NonExistingClass2();
  }

  public function exception_handler(Throwable $e): void { }

 }

 set_error_handler('ErrorHandling::error_handler');
 set_exception_handler('ErrorHandling::exception_handler');

 $blubb = new NonExistingClass();


Expected result:
----------------
Best case: printing an error message and stopping the script.

At least I expect the script to be aborted after the execution time limit exceeds.

Actual result:
--------------
PHP runs eating a core fully without increasing its memory need until I kill php-cgi.exe via task manager.