3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<? namespace B { const TEST12 = 1; } namespace A { use const B\TEST1 as TEST1; define ( 'TEST1', 5 ); echo TEST1; } ?>
based on 7JZ9Q
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Undefined constant 'B\TEST1' in /in/EJRKj:13 Stack trace: #0 {main} thrown in /in/EJRKj on line 13
Process exited with code 255.
Output for 5.6.8 - 5.6.15, hhvm-3.12.0
5
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.6.16 - 5.6.28
Notice: Use of undefined constant TEST1 - assumed 'TEST1' in /in/EJRKj on line 13 TEST1
Output for 5.4.34 - 5.5.35
Parse error: syntax error, unexpected 'const' (T_CONST), expecting identifier (T_STRING) or \\ (T_NS_SEPARATOR) in /in/EJRKj on line 10
Process exited with code 255.
Output for 4.3.0 - 5.4.32
<? namespace B { const TEST12 = 1; } namespace A { use const B\TEST1 as TEST1; define ( 'TEST1', 5 ); echo TEST1; } ?>