3v4l.org

run code in 500+ PHP versions simultaneously
<?php $array = ['key' => ['v1', 'v2']]; foreach ($array as $k => [$v1, $v2]) { var_dump($k, $v1, $v2); }
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
string(3) "key" string(2) "v1" string(2) "v2"

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53.17 ms | 1016 KiB | 4 Q