Split an array into chunks of two and preserve the original keys in PHP

Description

The following code shows how to split an array into chunks of two and preserve the original keys.

Example

/*  w  ww  .j  av  a  2  s.  c  om*/
<?php
   $age=array("XML"=>"35","HTML"=>"37","CSS"=>"43","Java"=>"50");
   print_r(array_chunk($age,2,true));
?>

The code above generates the following result.