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Bug #4378 ldap_seach function does not give you an option to use either LDAP V2 or V3
Submitted: 2000-05-10 13:21 UTC Modified: 2002-10-01 15:46 UTC
From: nbrandon at hotmail dot com Assigned:
Status: Closed Package: LDAP related
PHP Version: 3.0.16 OS: Windows NT 4.0
Private report: No CVE-ID: None
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From: nbrandon at hotmail dot com
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 [2000-05-10 13:21 UTC] nbrandon at hotmail dot com
I have got LDAP successfully working on Windows NT 4.0. When using the function ldap_search, it works fine for a filter like 'sn=brandon*'.

However, we use attributes with an underscore. When I specify a filter with an underscore liek 'corp_unique_key=4485*'. I get the following error message when loading the page;

Warning: LDAP: Unable to perform the search: Bad search filter in c:\program files\apache group\apache\htdocs\ldap\test2.php3 on line 20

The line of code is:

$sr = ldap_search($ds, $base_dn, "corp_unique_key=4485*");

I have been told that this could be a problem because the underscore is an illegal character in V3. However in V2, its perfectly legal to use.

I believe you can specify to use either version using the C libraries. (I got an email from someone to explain how the difference should look)

ldapsearch -h x5mer1 -V2 -bo=company corp_unique_key=123456
ldapsearch -h x5mer1 -V3 -bo=company corpuniquekey=123456

So, the question (or bug): How do you specify which version of the protocol you wish to use in the ldap_search funtion? 

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 [2002-10-01 15:46 UTC] hholzgra@php.net
from http://php.net/ldap_set_option

// $ds is a valid link identifier for a directory server
if (ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3))
    echo "Using LDAPv3";
else
    echo "Failed to set protocol version to 3";
 
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