3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class a { const a = b::c; const b = 1; } class b { const c = 1; const d = a::b; } var_dump(A::a, A::b, B::c, B::d, 'f');
Output for 5.0.0 - 7.1.0
int(1) int(1) int(1) int(1) string(1) "f"
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/7SQEk on line 4
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/7SQEk on line 4
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/7SQEk on line 4
Process exited with code 255.