Add isAdmin option.

main/admin/user_add.php

@@ -339,7 +339,8 @@ if( $form->validate()) {
             $hr_dept_id,
             $extra,
             null,
-            $send_mail
+            $send_mail,
+			$platform_admin
         );
 
 		Security::clear_token();
@@ -379,9 +380,6 @@ if( $form->validate()) {
 			foreach ($extra as $key => $value) {
 				UserManager::update_extra_field_value($user_id, $key, $value);
 			}
-			if ($platform_admin) {
-                UserManager::add_user_as_admin($user_id);
-			}
 			$message = get_lang('UserAdded');
 		}
 		if (isset($user['submit_plus'])) {

main/inc/lib/usermanager.lib.php

@@ -60,6 +60,9 @@ class UserManager
      * @param  int     The department of HR in which the user is registered (optional, defaults to 0)
      * @param  array Extra fields
      * @param  string Encrypt method used if password is given encrypted. Set to an empty string by default
+     * @param  bool $send_mail
+     * @param  bool $isAdmin
+     *
      * @return mixed   new user id - if the new user creation succeeds, false otherwise
      * @desc The function tries to retrieve user id from the session.
      * If it exists, the current user id is the creator id. If a problem arises,
@@ -84,7 +87,8 @@ class UserManager
         $hr_dept_id = 0,
         $extra = null,
         $encrypt_method = '',
-        $send_mail = false
+        $send_mail = false,
+        $isAdmin = false
     ) {
         $currentUserId = api_get_user_id();
         $hook = HookCreateUser::create();
@@ -206,6 +210,10 @@ class UserManager
             $sql = "UPDATE $table_user SET user_id = $return WHERE id = $return";
             Database::query($sql);
 
+            if ($isAdmin) {
+                UserManager::add_user_as_admin($userId);
+            }
+
             if (api_get_multiple_access_url()) {
                 UrlManager::add_user_to_url($return, api_get_current_access_url_id());
             } else {