3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo count(debug_backtrace(2));
based on ZsBEI
Output for 5.2.5 - 7.2.0
0
Output for 4.3.0 - 5.2.4
Warning: Wrong parameter count for debug_backtrace() in /in/X4CtD on line 3 0