3v4l.org

run code in 300+ PHP versions simultaneously
<?php $values = [[1, 2], [3, 4]]; foreach ($values as list($a, $b)) { echo $a . '-' . $b . "\n"; }
Output for 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
1-2 3-4
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'list' (T_LIST) in /in/6IZoY on line 4
Process exited with code 255.
Output for 5.3.4 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/6IZoY on line 3
Process exited with code 255.
preferences:
195.1 ms | 401 KiB | 256 Q