"; echo "db_host:".$db_host."--"."db_name:".$db_name."--"."db_pass:".$db_pass."--"."db_dabase:".$db_dabase; $mysqldb==new MySQLDB($db_host,$db_name,$db_pass,$db_dabase); $sql = "select * from loginuser where username='".$username."'"; $result = $mysqldb->Query($sql);//查询 $rs = $mysqldb->getRows($result);//获得记录集 $num = $mysqldb->getRowsNum($result);//获得记录数 if($num>0){ //如果是 登陆 session_start(); $_SESSION['username']=$username; $_SESSION['password']=$password; echo ""; }else{ echo "登录错误"; }?> config_db.php
class_db.php
host = $host; $this->user = $user; $this->passwd = $password; $this->database = $database; $this->conn=mysql_connect($this->host, $this->user,$this->passwd) or die("Could not connect to $this->host"); mysql_select_db($this->database,$this->conn) or die("Could not switch to database $this->database"); mysql_query("set names 'gbk'"); } //该函数用来关闭数据库连接 function Close() { MySQL_close($this->conn); } //该函数实现数据库查询操作 function Query($queryStr) { $res =Mysql_query($queryStr, $this->conn) or die("Could not query database"); return $res; }} 错误提示：Fatal error: Call to a member function Query() on a non-object in D:\AppServ\www\jxc\include\action\login_action.php on line 17
也就是login_action.php里面的 $result = $mysqldb->Query($sql);//查询
这一行
请问大侠们怎么解决？ 谢谢！
回复讨论(解决方案)
$mysqldb =new MySQLDB($db_host,$db_name,$db_pass,$db_dabase);
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