Question

我有这个数据库类

 function MySQLDB(){
  /* Make connection to database */
  $this->connection = mysql_connect(DB_SERVER, DB_USER, DB_PASS) or die(mysql_error());
  mysql_select_db(DB_NAME, $this->connection) or die(mysql_error());
  /**
   * Only query database to find out number of members
   * when getNumMembers() is called for the first time,
   * until then, default value set.
   */
  $this->num_members = -1;

  if(TRACK_VISITORS){
     /* Calculate number of users at site */
     $this->calcNumActiveUsers();

     /* Calculate number of guests at site */
     $this->calcNumActiveGuests();
  }


}

我收到max_user_connections错误，只有12个用户登录。我看到这个脚本显示如果用户超出配额，则在用户之间切换。

 ini_set('display_errors', '0');
$link = mysql_connect("localhost", "user", "pass");
if (mysql_errno() == 1040 OR mysql_errno() == 1203) {
    define("DB_HOST", "some_ip:3306");//remote
    define("DB_NAME", "db");  //database_name
    define("DB_USER", "user"); //database user name
    define("DB_PASSWORD","pass");  //database (user) password
}
else
{
    define("DB_HOST", "localhost");
    define("DB_NAME", "db_name2");  //database_name
    define("DB_USER", "user"); //database user name
    define("DB_PASSWORD","pass");  //database (user) password
}
ini_set('display_errors', '1');
//by feha at www.vision.to

有人能指出我如何将这个功能放入我的课程的正确方向。提前谢谢。

更新如果出现错误，这是否可以重置$ this-＆gt;连接到辅助用户？

function MySQLDB(){
  /* Make connection to database */
  $this->connection = mysql_connect(DB_SERVER, DB_USER, DB_PASS) or die(mysql_error());
  if (mysql_errno() == 1040 OR mysql_errno() == 1203) {
  $this->connection = mysql_connect(DB_SERVER, DB_SEC_USER, DB_SEC_PASS) or die(mysql_error());    
  }
  mysql_select_db(DB_NAME, $this->connection) or die(mysql_error());
  /**
   * Only query database to find out number of members
   * when getNumMembers() is called for the first time,
   * until then, default value set.
   */
  $this->num_members = -1;

  if(TRACK_VISITORS){
     /* Calculate number of users at site */
     $this->calcNumActiveUsers();

     /* Calculate number of guests at site */
     $this->calcNumActiveGuests();
  }

}

如果一个用户有多次尝试，我该如何切换数据库用户

0 个答案: