Set Redirect in Function

sanderjansma,
I just saw this was unanswered – sorry.

There is no shortcut for adding redirects, but you can add meta with normal WordPress meta functions. There are 3 meta keys you need to use when you do it:

_pprredirect_active
_pprredirect_type
_pprredirect_url

You just set them as you would add meta to a post –

update_post_meta($post->ID,'_pprredirect_active', '1');
update_post_meta($post->ID,'_pprredirect_type', '301');
update_post_meta($post->ID,'_pprredirect_url', 'http://someurl.com/');

So I guess if you wanted to, you could add a function of your own to be a shortcut (add to functions.php):

function set_redirect($postid = 0, $type = '301', $url = '', $active = 1){
    // if user did not pass a $postid, try to find the current post id from $post global;
    if($postid == 0 && $postid == ''){
        global $post;
        if(isset($post->ID) && $post->ID != '0')
           $postid = $post->ID;
    }

   // return false if no post id or url
    if($postid == 0 || $postid == '' || $url == '' )
        return false;

   // make sure active is either 1 or 0 (yes or no)
    $active = (int) $active > 0 ? 1 : 0; 

   // make sure redirect type is one of the allowed ones
    $type = $type != '301' && $type != '302' && $type != '307' ? '301' : $type;

   // add post meta
    update_post_meta($postid,'_pprredirect_active', $active);
    update_post_meta($postid,'_pprredirect_type', $type);
    update_post_meta($postid,'_pprredirect_url', $url);

    //return true so user knows if success
    return true;
}

Then to use, you would do it something like this (assuming you want to check it after you add it):

$add_meta = set_redirect($post->ID, 301, 'http://something.com/new-url/');
if($add_meta){
 ... do whatever on success
}else{
 ... do something else for fail
}

Or just like this if you do not need a check:
set_redirect($post->ID, 301, 'http://something.com/new-url/');

This also assumes that that you already have access to the global $post variable to pass into the function.

Best of luck,
Don