tryToConnectToServer() static public method

Try to connect to a ldap server
static public tryToConnectToServer ( $ldap_method, $login, $password ) : link
$ldap_method ldap_method array to use
$login User Login
$password User Password
return link to the LDAP server : false if connection failed
// Check session dir (usefull when NFS mounted))
if (is_dir(GLPI_SESSION_DIR) && is_writable(GLPI_SESSION_DIR)) {
    echo "GLPI_SESSION_DIR_OK\n";
} else {
    echo "GLPI_SESSION_DIR_PROBLEM\n";
    $ok = false;
}
// Reestablished DB connection
if (($ok_master || $ok_slave) && DBConnection::establishDBConnection(false, false, false)) {
    // Check LDAP Auth connections
    $ldap_methods = getAllDatasFromTable('glpi_authldaps', '`is_active`=1');
    if (count($ldap_methods)) {
        echo "Check LDAP servers:";
        foreach ($ldap_methods as $method) {
            echo " " . $method['name'];
            if (AuthLDAP::tryToConnectToServer($method, $method["rootdn"], Toolbox::decrypt($method["rootdn_passwd"], GLPIKEY))) {
                echo "_OK";
            } else {
                echo "_PROBLEM";
                $ok = false;
            }
            echo "\n";
        }
    } else {
        echo "No LDAP server\n";
    }
    // Check IMAP Auth connections
    $imap_methods = getAllDatasFromTable('glpi_authmails', '`is_active`=1');
    if (count($imap_methods)) {
        echo "Check IMAP servers:";
        foreach ($imap_methods as $method) {