3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A { const A = 'a'; } echo A::A; runkit_redefine_constant('A::A', 'b'); echo A::A;
Output for 7.0.0 - 7.1.0
a Fatal error: Uncaught Error: Call to undefined function runkit_redefine_constant() in /in/XaaXv:10 Stack trace: #0 {main} thrown in /in/XaaXv on line 10
Process exited with code 255.
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
a Fatal error: Call to undefined function runkit_redefine_constant() in /in/XaaXv on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/XaaXv on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/XaaXv on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/XaaXv on line 5
Process exited with code 255.