3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function a(){ $b =123; function b(){ echo $b; } echo b(); } a();
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: b in /in/krs1K on line 6
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: b in /in/krs1K on line 6