As you know, Codeigniter is a great PHP framework, I'm trying to make my own framework. Here is a problem. I really like the $data functionality in Codeigniter and I want to make it happen in my framework. Question is, how it works. Here is what it does :
you make a array like this :
$data['title']= 'My Name';
then you can use this variable like this in view :
$title ;
How I can make a variable like $data ?
What you are looking for is turning array keys into variables. There's one in-built function given to do this.
extract() - Import variables into the current symbol table from an array
$data['x'] = "Value";
extract($data, EXTR_PREFIX_SAME, null);
echo $x;
Go through docs and explore how you want to use it.
system\coreLoader.php` and look in _ci_load function. You'll see they have used extract. As you are writing framework you need mechanism to load views. While doing that you can use this function as they did or better find another way of loading views. Cheers :)Your question is a bit vague, and also don't write your own framework if you are struggling with this question.
But I think what you are asking is how does CI access the variables in $data (without $data['var_name'];) ?
So if you pass:
$data = array("title" => "a page title");
in your view you can just . Is that your question - how to do that?
it is simple.
function view($data=array(),$file="your-view-file.php") {
extract($data);
include($file);
}
because extract is in the same scope as the include().
Honestly though, just go through the CI files and work this stuff out...
when we pass the variable into the $data array inside a controller, We can use that variable exactly after passing it to $data array in controller at the following lines without doing any thing else and without calling any other modules. NO!