ci-php CI framework developed to pass parameter problems to JavaScript

Ciphpjavascript

On the Internet to read some of the PHP to JavaScript to pass the parameters of the problem, the use of Ajax technology, in the PHP side is basically the echo json_encoded method, and requires PHP files to clean, I want to develop in the CI framework, Allow controllers to pass some multidimensional arrays to the views, but a pass-through parameter will be displayed on the Web page using the Echo method. How can the data be transmitted correctly and not displayed on the interface?
Controllers
$this->load->view (' map ', $position)
Position is a two-bit array
Views
In map.php, JavaScript was called

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