3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('hello', 'NO'); var_dump('Start A', $a); $b = $a; var_dump('Start B', $b); b[] = ':O'; var_dump('End B', $b); var_dump('End A', $a);
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.28, 5.4.0 - 5.4.31
Parse error: syntax error, unexpected '[' in /in/UW0NT on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/UW0NT on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/UW0NT on line 7
Process exited with code 255.
preferences:
218.25 ms | 1395 KiB | 121 Q