From 15f80fd88704fb52abb820e2651c2eeaf1805df9 Mon Sep 17 00:00:00 2001
From: iarenaza <iarenaza>
Date: Sat, 31 May 2008 15:00:42 +0000
Subject: [PATCH] MDL-4248 Fix error when updating user profiles and any of
 these fields is empty

According to http://es2.php.net/manual/en/function.ldap-modify.php#43216 we
need to specify an array() value to delete an attribute's value, instead of an
empty string.

Merged from MOODLE_18_STABLE
---
 auth/ldap/auth.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/auth/ldap/auth.php b/auth/ldap/auth.php
index 73c38a8954..a47b716262 100644
--- a/auth/ldap/auth.php
+++ b/auth/ldap/auth.php
@@ -1099,6 +1099,7 @@ error('fix temporary table code in CAS');
                     }
 
                     $nuvalue = $textlib->convert($newuser->$key, 'utf-8', $this->config->ldapencoding);
+                    empty($nuvalue) ? $nuvalue = array() : $nuvalue;
                     $ouvalue = $textlib->convert($olduser->$key, 'utf-8', $this->config->ldapencoding);
 
                     foreach ($ldapkeys as $ldapkey) {
-- 
2.39.5