CODEWITHSUNDEEP
phpcodeigniter
Dustin
Dustin

Reputation: 4459

CodeIgniter: Way to use variable across entire site?

I have a variable that has the first URL segment. I want to use this as a class on the body tag. It will mainly be used for setting links in my navigation as being active. Is there a way that I can create this variable in one place and use it in all of my controllers? Its not that big of a problem to set it in all of my controllers but I'd like to keep my code as clean as possible. This is what I have in my controllers right now:

$url_segment = $this->uri->rsegment_array(); //get array of url segment strings
$data['url_segment'] = $url_segment[1]; //gets string of first url segment

Is there a way to only have the code above ONCE in my app, instead of inside all of my controllers? If so where should I place it?

Upvotes: 0

Views: 215

Answers (2)

user1618143
user1618143

Reputation: 1748

I'd extend CI_Controller with a custom subclass that includes that variable, then have all the actual controllers extend that. CodeIgniter makes it easy - just create application/core/MY_Controller.php containing something along these lines:

class MY_Controller extends CI_Controller {
    private $cached_url_seg;
    function MY_Controller() {
        parent::construct();
        $url_segment = $this->uri->rsegment_array(); //get array of url segment strings
        $this->cached_url_seg = $url_segment[1]; //gets string of first url segment
    }
}

And then change your controllers to extend MY_Controller.

You'll still have to add it to $data in each individual controller, but I suppose if you wanted you could add private $data to MY_Controller, too.

Upvotes: 3

Dave
Dave

Reputation: 1069

You might want to consider making a 1 time library file, with all features you want to be globally accessable, then in your autoload.php add this library there so it initializes automatically..

class my_global_lib {

  protected $CI;
  public $segment;

  public function __construct(){
    parent::__construct();
    $this->CI =& get_instance(); 

    // Do your code here like:
    $this->segment = $this->CI->uri->segment(1);

    // Any other things you want to have accessable by default could go here

  }

}

This would allow you to call this from your controller like so

echo $this->my_global_lib->segment;

does this help?

Upvotes: 1

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