3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php const A = B; const B = 10; var_dump(B); ?> ---- <?php const D = 11; const C = D; var_dump(C);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Use of undefined constant B - assumed 'B' in /in/4JJJR on line 3 int(10) ---- int(11)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_CONST in /in/4JJJR on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONST in /in/4JJJR on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/4JJJR on line 3
Process exited with code 255.