3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('a' => 'foo', 'b' => 'bar', 'c' => 'baz', 'd' => 'yo'); $array = array_merge(array_flip(array(end($array) => key($array))), array_slice($array,1,count($array) - 2), array_flip(array(reset($array) => key($array)))); print_r($array);

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34.28 ms | 402 KiB | 5 Q