如何发送单个变量以在Codeigniter中查看

Question

Hi I want to send single variable to view but I am unable to do it, Please help me.

Controller:

public function src($id=""){
    $this->load->view('catsrc', $id);
}

View:

<div class="container">
<?php echo $id ;?>
</div>

Error Getting:

Message: Undefined variable: id

Answer 1

I am not an expert of CodeIgniter but according to official documentation : "Data is passed from the controller to the view by way of an array or an object in the second parameter of the view loading function"

$this->load->view('catsrc', [ 'id' => $id ]);

was that so hard ?

Happy coding :)

Answer 2

CodeIgniter views read from a $data array. To reference $id in a view, put it in the $data array in your controller

$data = array('id' => 'your_value_here');

and pass $data to the view.

Full documentation on views lives at: https://ellislab.com/codeigniter/user-guide/general/views.html

Answer 3

How CI Classes Pass Information and Control to Each Other

Calling Views We have seen how the controller calls a view and passes data to it: First it creates an array of data ($data) to pass to the view; then it loads and calls the view in the same expression:

$this->load->view('testview', $data);

You can call libraries, models, plug-ins, or helpers from within any controller, and models and libraries can also call each other as well as plug-ins and helpers. However, you can't call one controller from another, or call a controller from a model or library. There are only two ways that a model or a library can refer back to a controller: Firstly, it can return data. If the controller assigns a value like this:

$foo = $this->mymodel->myfunction();

and the function is set to return a value, then that value will be passed to the variable $foo inside the controller.

This may not answer your question directly but helps!!