1--TEST-- 2GH-15168 (stack overflow in json_encode()) 3--SKIPIF-- 4<?php 5if (ini_get('zend.max_allowed_stack_size') === false) { 6 die('skip No stack limit support'); 7} 8if (getenv('SKIP_ASAN')) { 9 die('skip ASAN needs different stack limit setting due to more stack space usage'); 10} 11?> 12--INI-- 13zend.max_allowed_stack_size=512K 14--FILE-- 15<?php 16 17class Node 18{ 19 public $next; 20} 21 22$firstNode = new Node(); 23$node = $firstNode; 24for ($i = 0; $i < 30000; $i++) { 25 $newNode = new Node(); 26 $node->next = $newNode; 27 $node = $newNode; 28} 29 30var_dump(json_encode($firstNode, depth: 500000)); 31var_dump(json_last_error()); 32var_dump(json_last_error_msg()); 33 34while ($next = $firstNode->next) { 35 $firstNode->next = $next->next; 36} 37 38?> 39--EXPECT-- 40bool(false) 41int(1) 42string(28) "Maximum stack depth exceeded" 43
