3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = {1.2.3}; $b = {3,4,5}; $arr = array_merge($a,$b); print_r($arr);
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.29
Parse error: syntax error, unexpected '{' in /in/oHgk3 on line 2
Process exited with code 255.
preferences:
201.35 ms | 1399 KiB | 66 Q