在 adLDAP 中对用户进行身份验证时，结果为“用户身份验证失败”

>INFO：我正在尝试进行身份验证和 adLDAP

问题：adLDAP 告诉我"用户身份验证失败"

问题：当没有错误告诉我如何处理这个问题时，我如何找出我需要做什么。

搜索/尝试：

1. http://adldap.sourceforge.net/faq.php
2. stackoverflow.com/questions/2465260/using-adldap-php-class-but-getting-error-when-looking-for-group-user-belongs-to
3. adldap.sourceforge.net/wiki/doku.php?id=documentation_examples#authenticating_a_user
4. http://phreek.org/blog/2011/12/enable-php-ldap-module-in-xampp

法典：

require_once(dirname(__FILE__) . '/adLDAP.php');
$adldap = new adLDAP();
$username = "user";
// $username = "domain'user"; // I have also tried
$password = "pass";
$authUser = $adldap->authenticate($username, $password);
if ($authUser == true) {
  echo "User authenticated successfully";
}
else {
  echo "User authentication unsuccessful";
}
echo('<hr />');
$result=$adldap->user_info("jboyle");
print_r($result);

网页输出：

User authentication unsuccessful
Fatal error: Call to undefined method adLDAP::user_info() in C:'xampp'htdocs'adLDAP'compare.php on line 18

echo "User authentication unsuccessful";

echo "Username '{$username}' login failed: ".$adldap->getLastError();

Username 'user' login failed: Can't contact LDAP server