I want to create an Autocomplete function in WordPress. I want a search field from where username can be searched. I am using following JQuery UI.


<input type="text" name="user_name" id="user-name" />


$get_arr_user = array('John', 'Rogers', 'Paul', 'Amanda', 'Peter');



jQuery(document).ready(function($) {                                
var availableTags = <?php echo json_encode($get_arr_user); ?>;
$( "#user-name" ).autocomplete({
source: availableTags


My problem is that I am not able to get the list of Usernames in this format - array('John', 'Rogers', 'Paul', 'Amanda', 'Peter'); How do I get that?

3 Answers 3


The other answers are correct, but it's possible to achive the same thing with less code using wp_list_pluck():

$users = get_users();
$user_names = wp_list_pluck( $users, 'display_name' );

wp_list_pluck() used that way will get the display_name field of all the users in an array without needing to do a loop.

  • 2
    +1. Also, if less code is the target, then why not: $user_names = wp_list_pluck( get_users(), 'display_name' ); ;)
    – Fayaz
    Jul 12, 2018 at 11:18
  • 1
    Yes that would work. I just separated them for clarity and consistency with the other answers I was referencing. Though I'd probably leave them separate in my own code, I'm not fond of using functions as arguments. Jul 12, 2018 at 11:21

Look at get_users() function.


$users = get_users();

foreach( $users as $user ) {
    // get user names from the object and add them to the array
    $get_arr_user[] = $user->display_name;

And you'll get the array similar to following:

    [0] => John Doe
    [1] => Jane Doe
    [2] => Baby Doe

I'm pretty sure you'll want to exclude admins, order names and so on. So, look at the documentation to find out more get_users() arguments.


The get_users function will give you an array of user objects, from which you can extract an array of user names. Like this:

$args = array(); // define in case you want not all users but a selection
$users = get_users( $args );
$user_names = array();
foreach ( $users as $user ) {
    $user_names[] = $user->user_login;

Now $user_names is an array with login names. You can, off course, also use user_nicename, last_name, or whatever info is available in the wp_user object


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