3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class a { const a = b::c; const b = 1; const f = b::e; } class b { const c = 1; const d = a::b; const e = a::a; } var_dump(A::a, A::b, B::c, B::d, B::e, A::f);
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(1) int(1) int(1) int(1) int(1) int(1)
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/Ltpr4</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/Ltpr4</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/Ltpr4</b> on line <b>4</b><br />
Process exited with code 255.