From 8ff2032ea3fa49972fe076166c831719131e829d Mon Sep 17 00:00:00 2001
From: Frederic Guillot <fred@kanboard.net>
Date: Tue, 22 Dec 2015 19:35:41 +0100
Subject: Avoid PHP error when enabling LDAP group provider with PHP < 5.5

---
 ChangeLog                              | 1 +
 app/Group/LdapBackendGroupProvider.php | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index e49fdb19..a062848e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,6 +10,7 @@ Bug fixes:
 
 - Fix wrong constant name that cause a PHP error in project management section
 - Fix pagination in group members listing
+- Avoid PHP error when enabling LDAP group provider with PHP < 5.5
 
 Version 1.0.22
 --------------
diff --git a/app/Group/LdapBackendGroupProvider.php b/app/Group/LdapBackendGroupProvider.php
index d65a9865..cad732c4 100644
--- a/app/Group/LdapBackendGroupProvider.php
+++ b/app/Group/LdapBackendGroupProvider.php
@@ -45,7 +45,7 @@ class LdapBackendGroupProvider extends Base implements GroupBackendProviderInter
      */
     public function getLdapGroupPattern($input)
     {
-        if (empty(LDAP_GROUP_FILTER)) {
+        if (LDAP_GROUP_FILTER === '') {
             throw new LogicException('LDAP group filter empty, check the parameter LDAP_GROUP_FILTER');
         }
 
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