3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $ar = []; $int = 4.3; $ar[(str)$int] = '123'; var_dump($ar);
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected '$int' (T_VARIABLE), expecting ']' in /in/BSm3c on line 7
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[' in /in/BSm3c on line 3
Process exited with code 255.