Codeigniter controller error warnings. undefined function db item and declarations compatible - php

Question

Im working on a script that i download online but when i install codeigniter it brings this.
Severity: Warning
Message: Declaration of MY_Lang::line($line = '') should be compatible with CI_Lang::line($line, $log_errors = true)
Filename: core/MY_Lang.php
Line Number: 41
And here's my Controller
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Lang extends CI_Lang {
// --------------------------------------------------------------------
/**
* Load a language file
*
* #access public
* #param mixed the name of the language file to be loaded. Can be an array
* #param string the language (english, etc.)
* #param bool return loaded array of translations
* #param bool add suffix to $langfile
* #param string alternative path to look for language file
* #return mixed
*/
function load($langfile = '', $idiom = '', $return = FALSE, $add_suffix = TRUE, $log_errors = TRUE, $alt_path = '', $line ='')
{
parent::load($langfile, $idiom, $return, $add_suffix, $alt_path, $log_errors, $line);
}
function get_array()
{
return $this->language;
}
function line($line = '')
{
$value = ($line == '' OR ! isset($this->language[$line])) ? FALSE : $this->language[$line];
// Because killer robots like unicorns!
if ($value === FALSE)
{
log_message('debug', 'Could not find the language line "'.$line.'"');
}
return $value;
}
}
i don't know where is wrong, i already brake a little of fatal error warnings, but this one has my dry.
On the other hand, a second mistake that bounces me is this
Message: Call to undefined function config_db_item()
Filename: /home/casabla6/public_html/application/core/MY_Loader.php
and in the controller i have this.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Loader extends CI_Loader
{
function __construct()
{
parent::__construct();
$this->_ci_view_paths += array(FCPATH.'templates/'=>TRUE);
}
public function view($view, $vars = array(), $return = FALSE)
{
$admin_template = '';
if( config_db_item ('admin_template') !== FALSE)
$admin_template = config_db_item('admin_template');
if(strpos($view, 'admin/') === 0)
$view = $admin_template.'/'.$view;
if(isset($vars['subview']))
{
if(strpos($vars['subview'], 'admin/') === 0)
$vars['subview'] = $admin_template.'/'.$vars['subview'];
}
return parent::view($view, $vars, $return);
}
function common_view($view, $vars = array(), $return = FALSE)
{
$view = 'common/'.$view;
return parent::view($view, $vars, $return);
}
}
?>
can u give me a hand please?

Answer 1

Your class MY_Lang extends CI_Lang, which means the method MY_Lang::line() should have a definition that matches the method CI_Lang::line().
The original method in CI_Lang:
public function line($line, $log_errors = true)
Your extension in MY_Lang:
public function line($line = '')
You'll need to change your code to take the same arguments:
public function line($line, $log_errors = true)