问题
I have setup a codeigniter environment. I am able to pass data from my welcome controller to a view, but I created a new controller called TestController, and I cannot pass data to my test view. It says undefined variable.
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: data
Filename: views/gallery.php
Line Number: 4
Controller
<?php
class Testcontroller extends CI_Controller {
// --------------------------------------------------------------------
/**
* The constructor
*/
function __construct()
{
parent::__construct();
}
function index() {
$data = array('title' => 'My Title',
'heading' => 'My Heading',
'message' => 'My Message');
$this->load->view('test', $data);
}
}
?>
test view
<?php var_dump($data); ?>
回答1:
$data doesn't exist in the view. Instead you have one variable per key in the given array $data. So, in your case you have $title, $heading and $message.
Bear in mind that the passed data could be an anonymous array:
$this->load->view('test', array('title' => 'My Title',
'heading' => 'My Heading',
'message' => 'My Message'));
回答2:
You don't need to access the $data array in the view. Access the keys directly:
var_dump($title);
回答3:
In the view you can print like this:
<?php echo $title; ?>
<?php echo $heading; ?>
<?php echo $message; ?>
回答4:
Quick tip -- Do not include the closing php tag in your Controllers or Models !
} // bracket that closes class
// NO NO NO
?>
Can mess up the files. the controller or model should end with the class closing bracket. you can put a comment if you want
} // heres a comment and its ok
Whereas in your view files - always close your php code.
来源：https://stackoverflow.com/questions/17956512/codeigniter-data-not-being-passed-from-controller-to-view