(PHP 4, PHP 5)
array_reverse — Return an array with elements in reverse order
$array
   [, bool $preserve_keys = false
  ] )
   Takes an input array and returns a new array with
   the order of the elements reversed.
  
arrayThe input array.
preserve_keys
       If set to TRUE numeric keys are preserved. 
       Non-numeric keys are not affected by this setting and will always be preserved.
      
Returns the reversed array.
| Version | Description | 
|---|---|
| 4.0.3 | The preserve_keysparameter was added. | 
Example #1 array_reverse() example
<?php
$input  = array("php", 4.0, array("green", "red"));
$result = array_reverse($input);
$result_keyed = array_reverse($input, true);
?>
This makes both $result and $result_keyed have the same elements, but note the difference between the keys. The printout of $result and $result_keyed will be:
Array
(
    [0] => Array
        (
            [0] => green
            [1] => red
        )
    [1] => 4
    [2] => php
)
Array
(
    [2] => Array
        (
            [0] => green
            [1] => red
        )
    [1] => 4
    [0] => php
)