3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 'one' = [1, 2], 'two' = [37, 42], ]; foreach ($arr as $key => list($a, $b)) { var_dump($key, $a, $b); }
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected '=', expecting ']' in /in/DVclN on line 3
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/DVclN 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/DVclN on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/DVclN on line 2
Process exited with code 255.
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239.84 ms | 1395 KiB | 123 Q