Whats the difference between parser and view call? How to retrive the data from the view? (pass, return)

Question

1. What's the difference between these two calls? What's the general difference between parse and view? When do I use parser->parse and when load->view?

   $this->load->view('content', $data);
   $this->parser->parse('content', $data, FALSE);
   

2. If I have this array:

   $data = array(
      'title' => 'Home Page',
      'heading' => 'Heading'
   );
   $this->parser->parse('content', $data, FALSE);
   

   In content.php view I can do both by calling parse function

   echo $title;
   echo '<h1>{heading}</h1>';
   

   what's the difference?

3. As I understand The 3rd paramether of parse function can be TRUE or FALSE, when it's TRUE I can get values from the view like this

   $string = $this->parser->parse('content',$data, TRUE);
   

   how can I do that, what's the code in content?

Answer 1

load->view() does exactly what it says, it loads a view page.

parser->parse parses the page and can be used with views that contain template variables in place of PHP variables.

In application, both functions accomplish the objective of loading a view that contains HTML and PHP variables or template placeholders. However, parse is going to have more overhead, as it is not a native PHP solution, and is parsed to replace the templating values.

Consult the doumentation for more information:

http://ellislab.com/codeigniter/user-guide/general/views.html

http://ellislab.com/codeigniter/user-guide/libraries/parser.html