Query LDAP using PHP

ldap-test.php

<?php
$sam = 'user.name';
$username = $sam . "@mydomain.co.uk";
$password = "foobar";
$port = 636;
$host = "111.222.333.444";
$ldaphost = "ldaps://$host:$port";
$ldap_base_dn = 'DC=MyDomain,DC=co,DC=uk';

$ldapUsername = "cn=" .$username . "," . $ldap_base_dn;
$ldapPassword = $password;

// Uncomment below line for more debugging output
// ldap_set_option(null, LDAP_OPT_DEBUG_LEVEL, 7);

$ds = ldap_connect($ldaphost) or die("Could not connect to LDAP server");

ldap_set_option($ds, LDAP_OPT_REFERRALS, 0);

ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);

// now we need to bind to the ldap server
$ldapbind = ldap_bind($ds, $username, $password);

if ($ldapbind) {
    // Write a suitable LDAP query here...
    $search_filter = '(CN=*)';
    
    // Specify an array of AD User object attributes to return
    $attributes = array('*');
    
    // Run the query
    $result = ldap_search($ds, $ldap_base_dn, $search_filter, $attributes, 0, 0);
    
    if (false !== $result){
        // Collect the results
        $entries = ldap_get_entries($ds, $result);
        
        // Gross but easy.. print to screen
        print_r($entries);
    } else {
        echo "No results found";
    }
    
    // Disconnect
    ldap_unbind($ds);
} else {
    echo "LDAP bind failed...";
}