3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A{} $a = new A(); $a->{"\n\n"} = 123; var_dump($a);
based on L97aR
Output for 5.0.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
object(A)#1 (1) { [" "]=> int(123) }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 4.4.9
object(a)(1) { [" "]=> int(123) }