What are the best practices for implementing single sign-on (SSO) using AD passwords in PHP?

To implement single sign-on (SSO) using Active Directory (AD) passwords in PHP, you can use LDAP authentication to validate user credentials against the AD server. This allows users to log in to your PHP application using their AD credentials, providing a seamless SSO experience. 

// LDAP server settings
$ldap_server = 'ldap://your_ad_server';
$ldap_domain = 'your_domain';
$ldap_dn = 'CN=Users,DC=your_domain,DC=com';

// Connect to LDAP server
$ldap_conn = ldap_connect($ldap_server);
ldap_set_option($ldap_conn, LDAP_OPT_PROTOCOL_VERSION, 3);

// Bind to LDAP server with AD credentials
$ldap_bind = ldap_bind($ldap_conn, $ldap_domain . '\\' . $username, $password);

// Check if bind was successful
if ($ldap_bind) {
    // Authentication successful, set session variables or redirect to authenticated page
} else {
    // Authentication failed, handle error message or redirect to login page
}

// Close LDAP connection
ldap_close($ldap_conn);

Keywords

LDAP Active Directory authentication SSO PHP LDAP functions

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