//make comparisons and everything work
$dn = mb_strtolower($dn, 'UTF-8');
+ //escape DN values according to RFC 2253
+ //thanks to Kolab, http://git.kolab.org/pear/Net_LDAP3/tree/lib/Net/LDAP3.php#n1313
+ $aDN = ldap_explode_dn($dn, false);
+ unset($aDN['count']);
+ foreach($aDN as $key => $part) {
+ $value = substr($part, strpos($part, '=')+1);
+ $escapedValue = strtr($value, Array(','=>'\2c', '='=>'\3d', '+'=>'\2b',
+ '<'=>'\3c', '>'=>'\3e', ';'=>'\3b', '\\'=>'\5c',
+ '"'=>'\22', '#'=>'\23'));
+ $part = str_replace($part, $value, $escapedValue);
+ }
+ $dn = implode(',', $aDN);
+
return $dn;
}