3v4l.org

run code in 300+ PHP versions simultaneously
<?php $items = [1,2,3] function foo() { return $items; } foreach(foo() as &$item) { echo $item, PHP_EOL; $item = 5; echo $item, PHP_EOL; } var_dump($items);
Output for 5.4.0 - 5.4.40, 5.5.24, 5.6.8
Parse error: syntax error, unexpected 'function' (T_FUNCTION) in /in/6vgYD on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/6vgYD on line 2
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/6vgYD on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/6vgYD on line 2
Process exited with code 255.
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197.05 ms | 1395 KiB | 132 Q