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Editorial Team
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Asked: 2026-05-22T02:22:20+00:00

I’m looking to create a web based application in PHP that receives LDAP requests

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I’m looking to create a web based application in PHP that receives LDAP requests and sends LDAP responses back, but doesn’t actually use an LDAP server. Specifically I’d like to make the contacts table in a MySQL database available to Thunderbird as an LDAP address book.

Two Questions:

  1. Is there an existing library for implementing an LDAP server with PHP? (The PHP_LDAP package is for creating an LDAP client, where the PHP application connects to an existing LDAP server.)

  2. How does LDAP data actually get from the client into my script? Does LDAP travel over HTTP? Where the request would show up in:

    $HTTP_RAW_POST_DATA

or similar? Can Apache handle LDAP requests and pass them into my script or is it a completely different protocol that requires a different “listener” application to handle?

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1 Answer

  1. Editorial Team

    The LDAP protocol is not natively handled by Apache, and I’ve not seen any Apache modules that handle that protocol. I don’t believe you’ll be able to do it using PHP through Apache. You might be able to implement a pure PHP server (see http://php.net/manual/en/function.stream-socket-server.php) and then implement the LDAP protocol packet parser in PHP as well. I don’t believe there is a native ASN1 parser for PHP, but you might be able to find one in C and somehow integrate it.

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