How to access custom config variable in codeigniter controller

Question

I have a codigniter project with a custom config file called

application/config/my_config_variables.php:

This contains

<?php
$config['days'] = 20;

in :

 application/config/autoload.php

I've added:

$autoload['config'] = array('my_config_variables');

when I try to access this in my controller using:

 echo $this->$config['new_daily_contacts'];

I get:

Fatal error: Cannot access empty property.

What am I doing wrong?

addendum:

In my controller I've added:

 // An alternate way to specify the same item:
            $my_config = $this->config->item('my_config_variables',true);
            var_dump($my_config);

this outputs FALSE -- why?

What version of Codeigniter are you using?

slapyo
– slapyo

2014-11-11 19:13:53 +00:00
Commented Nov 11, 2014 at 19:13 — slapyo
– slapyo, Commented Nov 11, 2014 at 19:13
CI 2.1 -- Thanks for looking at it.

user1592380
– user1592380

2014-11-11 19:55:07 +00:00
Commented Nov 11, 2014 at 19:55 — user1592380
– user1592380, Commented Nov 11, 2014 at 19:55
stackoverflow.com/a/62427655/9573341

rahim.nagori
– rahim.nagori

2020-06-17 11:14:28 +00:00
Commented Jun 17, 2020 at 11:14 — rahim.nagori
– rahim.nagori, Commented Jun 17, 2020 at 11:14

slapyo · Accepted Answer · 2014-11-11 20:17:54Z

19

Look at the config documentation on Codeigniter.

echo $this->config->item('new_daily_contacts');

That will try to grab $config['new_daily_contacts'] but from your post it looks like you only have $config['days'] in your config file. But this should get you pointed in the right direction.

Alternate Way

With the alternate way you're trying to load the config, but you're using the item method, not the load method. On the item method, the 2nd parameter is the index you want to reference in the config array. For instance. With your example above.

$my_config = $this->config->load('my_config_variables', true);
var_dump($my_config);
$days = $this->config->item('days', 'my_config_variables');

Because passing true as the 2nd parameter on the load method will create an index with the same name as the config file. This helps avoid any conflicts if there happen to be other config files that contain the same config name.

$config['days']; becomes $config['my_config_variables']['days']

In order to access that config variable you have to pass the index in the item method.

https://github.com/bcit-ci/CodeIgniter/blob/2.1-stable/system/core/Config.php#L189

edited Nov 11, 2014 at 20:17

answered Nov 11, 2014 at 18:28

slapyo

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4 Comments

user1592380 Over a year ago

I've tried to follow this but still receiving errors - please see above:

slapyo Over a year ago

Updated the answer with your alternate way.

user1592380 Over a year ago

Thanks for your help, $this->config->item('new_daily_contacts'); worked. BTW, I wasn't sure bwhat is meant by index, is this a key in an associative array, like $config['key'] ?

slapyo Over a year ago

Ya, Codeigniter calls it an index in their documentation but it's a key. Same thing.

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