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<?php

/* 
* CSV to PHP Array
* Reference: http://www.w3schools.com/php/func_array_map.asp
*/

function csv_to_php_array($v)
{
  return($v*$v);
}
$csv = array(1,2,3,4,5);
print_r(array_map("csv_to_php_array",$csv));

/* 
* Returns: Array ( [0] => 1 [1] => 4 [2] => 9 [3] => 16 [4] => 25 )
*/