(PHP 5 >= 5.3.0)
SplFixedArray::fromArray — Import a PHP array in a SplFixedArray instance
$array
   [, bool $save_indexes = true
  ] )
   Import the PHP array array 
   in a new SplFixedArray instance
  
arrayThe array to import.
save_indexesTry to save the numeric indexes used in the original array.
Returns an instance of SplFixedArray containing the array content.
Example #1 SplFixedArray::fromArray() example
<?php
$fa = SplFixedArray::fromArray(array(1 => 1, 0 => 2, 3 => 3));
var_dump($fa);
$fa = SplFixedArray::fromArray(array(1 => 1, 0 => 2, 3 => 3), false);
var_dump($fa);
?>
The above example will output:
object(SplFixedArray)#1 (4) {
  [0]=>
  int(2)
  [1]=>
  int(1)
  [2]=>
  NULL
  [3]=>
  int(3)
}
object(SplFixedArray)#2 (3) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
}