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本文实例讲述了php实现比较全的数据库操作类。分享给大家供大家参考。具体如下:
<?php class database {private $hostname;private $user;private $pass;private $dbname;private $linkflag;private $charset;function __construct(){ $this->hostname="localhost"; $this->user="root"; $this->pass="111"; $this->dbname=""; $this->charset="utf8"; //gb2312 GBK utf8 $this->linkflag=mysql_connect($this->hostname,$this->user,$this->pass); mysql_select_db($this->dbname,$this->linkflag) or die($this->error()); mysql_query("set names ".$this->charset);}function __set($property_name,$value){ return $this->$property_name=$value;}function __get($property_name){ if(isset($this->$property_name)) {return $this->$property_name; } else return null;}function __call($function_name, $args){echo "<br><font color=#ff0000>你所调用的方法 $function_name 不存在</font><br>
";}function query($sql){ $res=mysql_query($sql) or die($this->error()); return $res;}function fetch_array($res){ return mysql_fetch_array($res);}function fetch_object($res){ return mysql_fetch_object($res);}function fetch_obj_arr($sql){ $obj_arr=array(); $res=$this->query($sql); while($row=mysql_fetch_object($res)) {$obj_arr[]=$row; } return $obj_arr;}function error(){ if($this->linkflag) {return mysql_error($this->linkflag); } else return mysql_error();}function errno(){ if($this->linkflag) {return mysql_errno($this->linkflag); } else return mysql_errno();}function affected_rows(){ return mysql_affected_rows($this->linkflag);}function num_rows($sql){ $res=$this->execute($sql); return mysql_num_rows($res);}function num_fields($res){ return mysql_num_fields($res);}function insert_id(){ $previous_id=mysql_insert_id($this->linkflag); return $previous_id;}function result($res,$row,$field=null){ if($field===null) {$res=mysql_result($res,$row); } else $res=mysql_result($res,$row,$field); return $res;}function version(){ return mysql_get_server_info($this->linkflag);}function data_seek($res,$rowNum){ return mysql_data_seek($res,$rowNum);}function __destruct(){ //mysql_close($this->linkflag);} }?>
希望本文所述对大家的php程序设计有所帮助。