在Codeigniter中使用带有.php扩展名的外部js [关闭]

Question

I am using codeigniter 2 and I have my theme folder consist of js, img, css folders.

Inside js folder, file name is js_functions.php contains:

<?php header("Content-type: text/javascript"); ?>
/**
 * GLOBAL VARIABLES & PATHS
 *
 * path definitions for jquery inline usage
 *
 */     
var base_url         = '<?=base_url();?>';
// ------------------------------------------------------------------------

/**
 * jquery.message Global Implementation
 *
 * Shows message if any session flashdata named message is set
 *
 */

<?php if($this->session->flashdata('message')):?>
$(function() { $().message("<?=$this->session->flashdata('message');?>"); });
<?php endif; ?>

// ------------------------------------------------------------------------

and, calling in it view file

<script type="text/javascript" src="<?=base_url();?>themes/admin/js/js_functions.php"></script>

renders correctly. But it returns in the chrome's inspect screen:

var base_url         = '<br />
Uncaught SyntaxError: Unexpected token ILLEGAL

and in the browser when you call the page from address bar:

var base_url         = '<br />
<b>Fatal error</b>:  Call to undefined function base_url() in <b>F:\xampp\htdocs\themes\js\js_functions.php</b> on line <b>11</b><br />

What's wrong? Isn't it the correct way of using php in external js/php file?

Answer 1

You need to make a controller to get the script. May be js. Inside your controller you set the content type headers and load the view which contains above javascript. Lets say you have a controller called js

class Js extends CI_Controller{
  public function js_functions(){
    $this->output->set_header('Content-type: text/javascript');
    $data = array( 'messages' => $this->session->flashdata('message'));
    $this->load->view('jsfunc',$data);
  }
}

And you can load the script in the main view like this

<script src="<?php echo base_url('js/js_functions'); ?>"></script>