How to concatenate base url with another variable in code igniter

Question

I need to concatenate the base url with another variable which should be public in the class. How can I do this?

Here is my code :

class site extends CI_Controller 
{
  public $site_favicon = base_url().'img/favicon.ico';
 // I tried even       public $site_favicon = base_url();.'img/favicon.ico';
}

Where i will call the variable $t publicly any where from the site.

How can i do this ?

This is how I will call:

<link rel="shortcut icon" href="<?php echo $this->site_favicon; ?>">

I am getting:

Parse error: syntax error, unexpected '(', expecting ',' or ';' in /opt/lampp/htdocs/ci/application/controllers/site.php on line 23

What mistake am I doing in concatenation and how can i fix this?

Obviously missing a semi colon probably at the end of line 22 — ElefantPhace
– ElefantPhace, Commented May 23, 2014 at 6:28
@ElefantPhace though i try to concatinate as public $site_favicon = base_url();.'img/favicon.ico'; i am getting the same error — Cii Learner
– Cii Learner, Commented May 23, 2014 at 6:30

Jenz · Accepted Answer · 2014-05-23 07:06:03Z

1

Try with this

class site extends CI_Controller 
{
     public function __construct()
    {
        parent::__construct();
        $this->load->helper(array('url'));
        $url=$this->config->base_url();
        $this->site_favicon=$url.'img/favicon.ico';
    }
}

Now you can access site_favicon in functions with echo $this->site_favicon;

<link rel="shortcut icon" href="<?php echo $this->site_favicon ?>">

Note : If you want variables set in the constructor accessible, then you have to set them as a class property ie., like $this->variablename and access them in the same way with $this->variablename in your functions.

edited May 23, 2014 at 7:06

answered May 23, 2014 at 6:53

Jenz

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7 Comments

Girish Over a year ago

can $this->site_favicon variable access on view?

Cii Learner Over a year ago

I am not getting error but i am getting empty value while i use this in my view <link rel="shortcut icon" href="<?php $this->site_favicon ?>">

Jenz Over a year ago

@Girish.Yes. In the same manner it will be available in view also

Jenz Over a year ago

@CiiLearner..You have to echo it. <link rel="shortcut icon" href="<?php echo $this->site_favicon ?>">

Cii Learner Over a year ago

@Jenz: Thanks I am getting it correct. ( If you find my question is valid. Kindly upvote it too)

|

Girish · Accepted Answer · 2014-05-23 06:50:52Z

0

You can't assign function inside class varable, base_url is helper function, that is initialized in system autoload So you can use directly in views Try this way

<link rel="shortcut icon" href="<?php echo base_url("img/favicon.ico"); ?>">

OR

<link rel="shortcut icon" href="<?php echo base_url()."img/favicon.ico"; ?>">

UPDATE: You should assign favicon value in view variable, the view variables are defined in controller -> action method

In controller

$favicon = base_url().'img/favicon.ico';
$this->load->view("viewName", array("favicon" => $favicon));

In view you can access variable

<link rel="shortcut icon" href="<?php $favicon; ?>">

NOTE: you can't access controller class variable value directly in view

edited May 23, 2014 at 6:50

answered May 23, 2014 at 6:35

Girish

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2 Comments

Cii Learner Over a year ago

Thanks i am getting. But i don't want to use the base_url() in the view. I just want to assign the value for $site_favicon; as there are several pages in my website. (But i am able to assign other variables just inside the calss)

Cii Learner Over a year ago

Parse error: syntax error, unexpected '$favicon' (T_VARIABLE), expecting function (T_FUNCTION) in /opt/lampp/htdocs/ci/application/controllers/site.php on line 23 Same error. Let me try in few min and convey you ji

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