3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $obj = (object)[''=>null]; var_dump(get_object_vars($obj));//array(0) {} var_dump($obj->{""}); //object(stdClass)#1 (1) { [""]=> NULL
Output for hhvm-3.10.0 - 3.12.0, 7.1.0
array(1) { [""]=> NULL } NULL
Output for 7.0.0 - 7.0.14
array(1) { [""]=> NULL } Fatal error: Uncaught Error: Cannot access empty property in /in/RDvZJ:4 Stack trace: #0 {main} thrown in /in/RDvZJ on line 4
Process exited with code 255.
Output for 5.6.21 - 5.6.28
array(0) { } Fatal error: Cannot access empty property in /in/RDvZJ on line 4
Process exited with code 255.
Output for 5.4.0 - 5.6.20
Notice: Illegal member variable name in /in/RDvZJ on line 3 array(0) { } Fatal error: Cannot access empty property in /in/RDvZJ on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/RDvZJ on line 2
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 '[' in /in/RDvZJ on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/RDvZJ on line 2
Process exited with code 255.