Description:
------------
in line echo ....... 


Reproduce code:
---------------
function split_post()
{
	$fields=array_keys($_POST);
	foreach($fields as $key => $field)
		echo $key.'-'.print_r(split("_",$field)).'<br>';

	return $fields;
}

Expected result:
----------------
I think, result must be
0-Array ( [0] => usergroup )
1-Array ( [0] => position )
2-Array ( [0] => menukeyw [1] => 34 )
:
:
:

Actual result:
--------------
Array ( [0] => usergroup ) 0-1
Array ( [0] => position ) 1-1
Array ( [0] => menukeyw [1] => 34 ) 2-1
Array ( [0] => task [1] => 34 ) 3-1
Array ( [0] => visible [1] => 34 ) 4-1
Array ( [0] => menukeyw [1] => 35 ) 5-1
Array ( [0] => task [1] => 35 ) 6-1
Array ( [0] => visible [1] => 35 ) 7-1
Array ( [0] => menukeyw [1] => 36 ) 8-1
Array ( [0] => task [1] => 36 ) 9-1
Array ( [0] => visible [1] => 36 ) 10-1
Array ( [0] => menukeyw [1] => 37 ) 11-1
Array ( [0] => task [1] => 37 ) 12-1