3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); $a[] = false; print isset(a[0])?'yes':'no';
Output for 7.0.0 - 7.1.0
Notice: Use of undefined constant a - assumed 'a' in /in/mj2i6 on line 6 yes
Output for hhvm-3.10.0 - 3.12.0
Fatal error: syntax error, unexpected '[', expecting ',' or ')' in /in/mj2i6 on line 6
Process exited with code 255.
Output for 5.6.8 - 5.6.28
Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in /in/mj2i6 on line 6
Process exited with code 255.
Output for 5.5.24 - 5.5.35
Parse error: syntax error, unexpected '[' in /in/mj2i6 on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '[', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/mj2i6 on line 6
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting T_PAAMAYIM_NEKUDOTAYIM in /in/mj2i6 on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting T_PAAMAYIM_NEKUDOTAYIM in /in/mj2i6 on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_VARIABLE or '$' in /in/mj2i6 on line 6
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_STRING, expecting T_VARIABLE or '$' in /in/mj2i6 on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/mj2i6 on line 6
Process exited with code 255.