3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $i = new stdClass(); $i->{1234} = "test"; $i = (array) $i; foreach ($i as $key => $value) { var_dump($key, $value, $i[$key]); }
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 1234 in /in/q2jT4 on line 7 string(4) "1234" string(4) "test" NULL
Output for 5.3.0 - 5.3.29, hhvm-3.12.0
Notice: Undefined index: 1234 in /in/q2jT4 on line 7 string(4) "1234" string(4) "test" NULL
Output for hhvm-3.10.0
Notice: Undefined index: 1234 in /in/q2jT4 on line 26 string(4) "1234" string(4) "test" NULL
Output for 5.0.0 - 5.2.17
Notice: Undefined index: 1234 in /in/q2jT4 on line 7 string(4) "1234" string(4) "test" NULL
Output for 4.3.3 - 4.4.9
Fatal error: Property name must be a string in /in/q2jT4 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.2

Process exited with code 139.