LDAP_DEREF_NEVER is not (never) defined

Looks good to me
tests++

Maybe it's related:

Notice: Constant LDAP_DEREF_NEVER already defined in include_once() (line 96 of /var/www/sites/all/modules/ldap/ldap_servers/ldap_servers.module).

Start apearing after yesterday update

Added this condition in the meantime:

if (!defined('LDAP_DEREF_NEVER')) define('LDAP_DEREF_NEVER', 0x25);

CORE 7.43
LDAP 7.x-2.0-beta8+17-dev (2016-Mar-13)

MySQL 5.6.24

@queenvictoria had fixed already

Just updated from 7.x-1.0-beta12+17-dev (2013-09-30) to 7.x-1.0-beta12+18-dev (2016-03-13), and this is the only commit in the update.

Immediately after updating, I started receiving Notice: Constant LDAP_DEREF_NEVER already defined in include_once() (line 92 of .../ldap_servers.module). on every page (including in the Seven-themed admin area).

The error persists after forced registry rebuild and clearing all caches. LDAP modules enabled:

• LDAP Authentication
• LDAP Authorization
• LDAP Authorization - Drupal Roles
• LDAP Profile
• LDAP Servers

I grepped our entire Drupal codebase and LDAP_DEREF_NEVER is only defined in one place (ldap_servers.module). Many other constants are defined in the same location but don't trigger PHP notices; I have no idea why this particular constant causes the notice and the others don't.

http://php.net/manual/en/ldap.constants.php

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

LDAP_DEREF_NEVER (integer)

Therefore 7.x-1.0-beta12+18-dev (2016-03-13) complains as pointed out by others. This needs to be fixed.

Bug present in newly released security update 7.x-1.0-beta13. Please fix.

Here's a patch rolled against 7.x-1.x-dev.

I can confirm patch from #12 is working.

thanks - fixed, will roll a new 1.x branch release once #1920094: ldap authentication: allow login with null byte - null byte attack is resolved