[Solved] How to Use model Function In array_map callback?

[eluser]Iciclefeet[/eluser]
Is there a way to Use Model Function in a array_map callback

Example Model with Callback function

Code:

<?php
if (!defined('BASEPATH'))
exit('No direct script access allowed');

class global_functions extends CI_Model {
        //Adds BackTicks to Header
public function Mysql_Header_BackTick($Headers){
  return "`".$Headers."`";
}
}

Example Call

Code:

$Header=Array('Example 1'=>100,
              'Example2'=>100,
              'Example 3'=>120);
$SelectHeaders=array_map("\$this->global_functions->Mysql_Header_BackTick",array_keys($Header));

This is the warning message i get when i try.

Warning Message
array_map() expects parameter 1 to be a valid callback, function '$this->global_functions->Mysql_Header_BackTick' not found or invalid function name

Thanks in advance.

[eluser]Kamarg[/eluser]
Been a while but I think the below works.

Code:

$Header=Array('Example 1'=>100,
              'Example2'=>100,
              'Example 3'=>120);
$SelectHeaders=array_map(array($this->global_functions, "Mysql_Header_BackTick"),array_keys($Header));

[eluser]Iciclefeet[/eluser]
Thanks, Works... seems so obvious now. TGIF