Question

I have this in my controller:

function foo() {
    // my code
    redirect(site_url('competitor/main'), 'refresh');
    $this->foo2();
}

function foo2() {
    // upload a file
}

How do I keep foo2() running after using the redirect() method?

The reason I want to call foo2() after redirect() is because I want to save upload time. When a user uploads a file at site_url('competitor/main') it will go to foo() function, then redirect immediately back to competitor/main page and foo2() will run in the background.

Answer 1

Codeigniter’s redirect() function exits after sending the location header. So, call the function before redirecting.

$this->foo2();
redirect('competitor/main', 'refresh');

Note: No need for site_url() here, the redirect function will add it if you use a relative URL.

I’m not sure what foo2() does, but this looks a little iffy…

If for some reason you can’t do that, then send the header with native PHP.

header("Refresh:0;url=".site_url('competitor/main')); 
$this->foo2();
exit;

---

When user upload file on site_url('competitor/main') it will go to foo() function then redirect immediately back to competitor/main page and foo2() will run in background process.

This probably isn’t the way to handle uploads, as you will have no way to deal with errors. There are a couple of other ways I can suggest:

• Upload to another URL, process the file, then redirect to the page of your choice (with a status message if you wish)
• Have your upload form post to an <iframe>, which will keep the page in it’s current state.
• Advanced: Use javascript to upload the file with an XMLHttpRequest/AJAX. There are a number of scripts available for this.