Fatal Error: call to undefined function function_name

function get_albums(){
    $albums = array();
    $code = func_get_args();
    if ($code[0] == "utf8") mysql_query("SET NAMES 'utf8'"); //вывод в нужной кодировке в зависимости фактических параметров
    $albums_query = mysql_query("
    SELECT `albums`.`album_id`, `albums`.`timestamp`, `albums`.`name`, COUNT(`images`.`image_id`) as `image_count`
    FROM `albums`
    LEFT JOIN `images`
    ON `albums`.`album_id` = `images`.`album_id`
    GROUP BY `albums`.`album_id`
    ");
    while ($albums_row = mysql_fetch_assoc($albums_query)){
        $albums[] = array(
                'id' => $albums_row['album_id'],
                'timestamp' => $albums_row['timestamp'],
                'name' => $albums_row['name'],
                'count' => $albums_row['image_count']
        );
    }
    return $albums;
}

<?php
include 'init.php';
//html код
$albums = get_albums("utf8");
?>

$functions = get_defined_functions();
echo '<pre>'; var_dump($functions['user']); echo '</pre>';

$functions = get_defined_functions();
var_dump( in_array('get_albums', $functions['user']) );

$functions = get_defined_functions();
var_dump( in_array('get_albums', $functions['user']) );

bool(false) 1
 
array(6) {
  [0]=>
  string(15) "phpmm_integrity"
  [1]=>
  string(11) "_good_agent"
  [2]=>
  string(14) "acl_get_limits"
  [3]=>
  string(11) "file_search"
  [4]=>
  string(9) "logged_in"
  [5]=>
  string(12) "create_thumb"
}

<?php//comment
/*
мои функции
*/
?>

bool(false)
 
Array
(
    [0] => phpmm_integrity
    [1] => _good_agent
    [2] => acl_get_limits
)

<?php //comment

<?php//comment

<?php //comment