Description:
------------
In documentation page there is an error in example.

Accually Array_revers when preserve key is true will maintain key to value. Example shows that it does not.

Proper output will be:
Array
(
    [0] => Array
        (
            [0] => green
            [1] => red
        )

    [1] => 4
    [2] => php
)
Array
(
    [2] => php
    [1] => 4
    [0] =>Array
        (
            [0] => green
            [1] => red
        )

)

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From manual page: http://www.php.net/function.array-reverse#refsect1-function.array-reverse-seealso
---