ad.php

<?php

define(LDAP_OPT_DIAGNOSTIC_MESSAGE, 0x0032);

$handle = ldap_connect('ldap://9.0.0.1');
$bind = ldap_bind($handle, 'observium-xxxxx@domain.local', 'super good password');

if ( ! $bind)
{
        if (ldap_get_option($handle, LDAP_OPT_DIAGNOSTIC_MESSAGE, $extended_error))
        {
                echo "Error Binding to LDAP: $extended_error";
        }
        else
        {
                echo "Error Binding to LDAP: No additional information is available.";
        }
}
else
{
        $result = ldap_search($handle, 'DC=domain,DC=local', '(sAMAccountName=some_username)');

        $info = ldap_get_entries($handle, $result);

        var_dump($info);
}