1--TEST--
2Out of Memory in a nested fiber
3--INI--
4memory_limit=2M
5--SKIPIF--
6<?php
7if (getenv("USE_ZEND_ALLOC") === "0") {
8    die("skip Zend MM disabled");
9}
10?>
11--FILE--
12<?php
13
14$fiber = new Fiber(function (): void {
15    $fiber = new Fiber(function (): void {
16        $buffer = '';
17        while (true) {
18            $buffer .= str_repeat('.', 1 << 10);
19        }
20    });
21
22    $fiber->start();
23});
24
25$fiber->start();
26
27?>
28--EXPECTF--
29Fatal error: Allowed memory size of %d bytes exhausted%s(tried to allocate %d bytes) in %sout-of-memory-in-nested-fiber.php on line %d
30