回答

在config.inc.php中设置auth_type为第三方一键登录，

$cfg['Servers'][$i]['auth_type'] = 'signon';

/* Server parameters */

$cfg['Servers'][$i]['host'] = 'localhost';

$cfg['Servers'][$i]['connect_type'] = 'tcp';

$cfg['Servers'][$i]['compress'] = false;

$cfg['Servers'][$i]['AllowNoPassword'] = false;
$cfg['Servers'][$i]['SignonURL'] = "login.php";
$cfg['Servers'][$i]['LogoutURL'] = "loginout.php";
$cfg['Servers'][$i]['SignonSession'] = "SignonSession";

<?php
         session_set_COOKIE_params(0, '/', '', 0);
         session_name('SignonSession');
         session_start();
         $_SESSION['PMA_single_signon_user'] = 'root';
         $_SESSION['PMA_single_signon_password'] = 'ROOTPASSWORDHERE';
         $_SESSION['PMA_single_signon_host'] = 'localhost';
         session_write_close();

         if( !isset($_GET[server])){
            header('Location: index.php?server=1');
         }

    ?>

<?php
session_set_COOKIE_params(0, '/', '', 0);
/* Create signon session */
$session_name = 'SignonSession';
session_name($session_name);
// Uncomment and change the following line to match your $cfg['SessionSavePath']
//session_save_path('/foobar');
  //开启 Session
  session_start();
  // 删除所有 Session 变量
  $_SESSION = array();
  //判断 COOKIE 中是否保存 Session ID
   if(isset($_COOKIE[session_name()])){
     setCOOKIE(session_name(),'',time()-3600, '/');
  }
  //彻底销毁 Session
  session_destroy();
  ?>