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run code in 300+ PHP versions simultaneously
<?php $arr = ["foo", "bar", "baz"]; for(reset($arr); list($k, $v) = each($arr);){ echo "$k => $v\n"; } echo "\n---\n"; foreach($arr as $k => $v){ echo "$k => $v\n"; }

preferences:
40.45 ms | 402 KiB | 5 Q