3v4l.org

run code in 300+ PHP versions simultaneously
<?php $e=array()[]=1; var_dump($e);
Output for 7.0.0 - 7.0.13
Fatal error: Cannot use temporary expression in write context in /in/n4NpD on line 3
Process exited with code 255.
Output for 5.6.0 - 5.6.27
Fatal error: Cannot use [] for reading in /in/n4NpD on line 3
Process exited with code 255.
preferences:
154.44 ms | 996 KiB | 7 Q