3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(E_ALL); $ignore_args = defined('DEBUG_BACKTRACE_IGNORE_ARGS') ? DEBUG_BACKTRACE_IGNORE_ARGS : false; $result = @call_user_func('debug_backtrace', $ignore_args, 5); var_dump($result);
based on PfnDD
Output for hhvm-3.12.0, 7.0.0 - 7.1.0
array(0) { }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.6.28
array(1) { [0]=> array(3) { ["file"]=> string(9) "/in/W25GJ" ["line"]=> int(4) ["function"]=> string(14) "call_user_func" } }
Output for 4.3.0 - 5.3.29
NULL