Playing around with callbacks in array_map. Notice array($this, 'process') lets you specify an object->method, perfect for use in framework controller (like in Codeigniter)

gistfile1.txt

<?php

$main_object = new main_object();
$main_object->main(); 


class main_object{

  function main()
	{
		$method = array($this, 'process');
		var_dump($method);

		$array = array(1,2,3,4);

		array_map(array($this, 'process'), $array);

		echo '<br />';

		array_map(array(new other_object(), 'triple'), $array);

		echo '<br />';

		array_map(create_function('$n', 'echo $n * 2;'), $array);

	}


	function process($n)
	{
		echo $n;
	}
}

class other_object
{
	function triple($n)
	{
		echo $n * 3;
	}	
}