Question

I have the following code in a Controller:

$data['what'] = 'test';
$this->load->view('test_view', $data);
$this->load->view('test_view');

View:

<?php
    echo $what;
?>

The Result when running this code is:

testtest

Shouldn’t it be simply ‘test’ because the second time I am not passing the variable $data?
How can I make CodeIgniter behave this way?

EDIT1:

I have come up with a temporary workaround for this problem:

Replace in Loader.php:

/*
* Flush the buffer... or buff the flusher?
*
* In order to permit views to be nested within
* other views, we need to flush the content back out whenever
* we are beyond the first level of output buffering so that
* it can be seen and included properly by the first included
* template and any subsequent ones. Oy!
*
*/ 

With:

 /*
 * Flush the buffer... or buff the flusher?
 *
 * In order to permit views to be nested within
 * other views, we need to flush the content back out whenever
 * we are beyond the first level of output buffering so that
 * it can be seen and included properly by the first included
 * template and any subsequent ones. Oy!
 *
 */ 

 if (is_array($_ci_vars)){
   foreach ($_ci_vars as $key12 => $value12) {
      unset($this->_ci_cached_vars[$key12]);
   }
 }

That should remove the variables from the cache after they’re done being used.

BUG REPORT: http://bitbucket.org/ellislab/codeigniter/issue/189/code-igniter-views-remember-previous

Answer 1

That is interessting, I never came to use it like this but you are right it should not do this, maybe this is some caching option. In worst case you must call it like this:

$this->load->view('test_view', '');

Edit:

I have just checked the Code Igniter code from their repository. The reason for this is that they are really caching the variables:

    /*
     * Extract and cache variables
     *
     * You can either set variables using the dedicated $this->load_vars()
     * function or via the second parameter of this function. We'll merge
     * the two types and cache them so that views that are embedded within
     * other views can have access to these variables.
     */ 
    if (is_array($_ci_vars))
    {
        $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars);
    }
    extract($this->_ci_cached_vars)

If I understood it correctly you must do it unfortunately like this:

$this->load->view('test_view', array('what' => ''));