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I want to get the users of role academic and student. I have tried using the code below (passing an array of roles, but all users are being displayed, so clearly it's not working.

$roles=array('academic','student');
$args =array('role'=>$roles);
$users=get_users( $args );

foreach ($users as $user) {
    echo '<li>' . $user->user_email . '</li>';
}
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1 Answer 1

up vote 2 down vote accepted

I don't think it's possible to do it with the get_users function. From what the Codex implies, you cannot pass arrays to the role argument. But it should be fairly easy to code your way out of that limitation.

Try this:

function filter_two_roles($user) {
    $roles = array('academic','student');
    return in_array($user->roles[0], $roles);
}

$users = get_users('fields=all_with_meta');
// Sort by last name
usort($users, create_function('$a, $b', 'if($a->last_name == $b->last_name) { return 0;} return ($a->last_name > $b->last_name) ? 1 : -1;'));
// Iterate through users, filtering out the ones which don't have the roles we want 
foreach(array_filter($users, 'filter_two_roles') as $user) {
    // Your code
}

Asking for users with the argument field=all_with_meta is very powerful, and WP seems to map indexes which aren't even shown when doing a print_r on the user object. That is why we can sort them using first or last names, as shown above (I actually took the code from an older answer of mine).

Let us know how it goes?

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thanks for this. Where do I put my two user role types though? –  Nicola Sep 4 '12 at 15:59
    
I may not be able to use the get_users function anyway because I need to sort the output by last name, and I have realised that object that get_users returns doesn't have a parameter of last name :( so I can't say orderby=last_name –  Nicola Sep 4 '12 at 16:00
    
1) The roles from the question are already in the code (line 2). You can edit the 'filter_two_roles' function to get other roles too. 2) You most certainly can sort them by first or last name; I've edited the answer to provide this as well. –  tbuteler Sep 4 '12 at 16:45
    
Wow thank you SO much, that works perfectly. I really am so grateful, I spent about 2 hours at work this afternoon trying to get round this, seen this answer when I got home and couldn't resist trying it. Thank you. –  Nicola Sep 4 '12 at 19:20
    
You're welcome! Glad it worked :) –  tbuteler Sep 4 '12 at 19:51
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