Array To String error / undefined $query

Even more errors!

Code:

A PHP Error was encountered
Severity: Runtime Notice
Message: Declaration of Admin_Controller::render() should be compatible with MY_Controller::render($the_view = NULL, $template = 'master', $data = NULL)
Filename: core/MY_Controller.php
Line Number: 47
Backtrace:
File: /home/codmol/public_html/siiga/index.php
Line: 315
Function: require_once
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: query
Filename: docs/existing_view.php
Line Number: 3
Backtrace:
File: /home/codmol/public_html/siiga/application/views/admin/docs/existing_view.php
Line: 3
Function: _error_handler
File: /home/codmol/public_html/siiga/application/core/MY_Controller.php
Line: 23
Function: view
File: /home/codmol/public_html/siiga/application/core/MY_Controller.php
Line: 45
Function: render
File: /home/codmol/public_html/siiga/application/controllers/admin/Docs.php
Line: 72
Function: render
File: /home/codmol/public_html/siiga/index.php
Line: 315
Function: require_once

[b]Fatal error[/b]: Call to a member function result_array() on null in [b]/home/codmol/public_html/siiga/application/views/admin/docs/existing_view.php[/b] on line [b]3[/b]
A PHP Error was encountered
Severity: Error
Message: Call to a member function result_array() on null
Filename: docs/existing_view.php
Line Number: 3
Backtrace:

The render() method in Admin_controller should have the same signature with render() method in MY_Controller.

In the model, use $query->result()

In the view, revise the following line:

PHP Code:

foreach ($query as $row) // not $query->result()