<?php class DB{ var $host_addr = "localhost"; var $host_user = "root"; var $host_psw = "123"; var $db_name = "test";
var $link_id; var $query_id; var $numRow;
function DB(){ $this->link_id = @mysql_connect($this->host_addr,$this->host_user,$this->host_psw); if($this->link_id){ @mysql_select_db($this->db_name,$this->link_id) or $this->halt("数据库连接失败!"); }else{ $this->halt("连接服务器失败!"); return false; } return $this->link_id; } function query($sql){ $this->query_id = @mysql_query($sql,$this->link_id); if($this->query_id){ return $this->query_id; }else{ $this->halt("SQL Error::"); return false; } } function numRow(){ return $this->numRow = @mysql_num_rows($this->query_id); } function close(){ return @mysql_close($this->link_id); } function halt($msg){ echo "<font color="#FF0000">".$msg."</font>"; }
} ?>
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