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I was asked recently about how to order members in a loop based on the value of a (numerical) custom field in their profile.

Place the following in your functions.php file:

<?php
function du_users_by_value($field_id){
/* duable.com */
$numberedUsers = array();
$orderedIds = array();

if ( bp_has_members(bp_ajax_querystring( ‘members’ ) ) ) :
while ( bp_members() ) : bp_the_member();
/* Get the field value from all members */
$number_field = xprofile_get_field_data($field_id, bp_get_member_user_id());
/* Push user id and number value to an array */
$numberedUsers[$number_field] = bp_get_member_user_id();
endwhile;
endif;

/* Sort the members by the custom field value, highest to lowest */
ksort($numberedUsers);

/* Create a new array with just the member id’s in the correct order */
foreach ($numberedUsers as $user) {
array_push($orderedIds, $user)
}

/* Echo out the include argument along with comma seperated values of the members in order */
$orderedIds=implode(“,”,$orderedIds);
echo ‘include=’ . $orderedIds;
}
?>

Place the following in your template file where you want the loop to show up:

<?php
/* Your Loop: Replace field_id with the id or name of the field to order by */
if ( bp_has_members( du_users_by_value(‘field_id’) . ‘&’ . bp_ajax_querystring( ‘members’ ) ) ) :
while ( bp_members() ) : bp_the_member();
DO SOMETHING HERE
endwhile;
endif;
?>

Feel free to post any questions or bugs.