PHP操作ACCESS数据库的2个类

<?php -------------------------------------------------------------------- //一个不错PHP Access数据库操作类 //使用范例： //$databasepath="database.mdb"; //$dbusername=""; //$dbpassword=""; //include_once("class.php"); //$access=new Access($databasepath,$dbusername,$dbpassword); -------------------------------------------------------------------- class Access { var $databasepath,$constr,$dbusername,$dbpassword,$link; function Access($databasepath,$dbusername,$dbpassword) { $this->databasepath=$databasepath; $this->username=$dbusername; $this->password=$dbpassword; $this->connect(); } function connect() { $this->c . realpath($this->databasepath); $this->link=odbc_connect($this->constr,$this->username,$this->password,SQL_CUR_USE_ODBC); return $this->link; //if($this->link) echo "恭喜你,数据库连接成功!"; //else echo "数据库连接失败!"; } function query($sql) { return @odbc_exec($this->link,$sql); } function first_array($sql) { return odbc_fetch_array($this->query($sql)); } function fetch_row($query) { return odbc_fetch_row($query); } function total_num($sql)//取得记录总数 { return odbc_num_rows($this->query($sql)); } function close()//关闭数据库连接函数 { odbc_close($this->link); } function insert($table,$field)//插入记录函数 { $temp=explode(',',$field); $ins=''; for ($i=0;$i<count($temp);$i++) { $ins.="'".$_POST[$temp[$i]]."',"; } $ins=substr($ins,0,-1); $sql="Insert INTO ".$table." (".$field.") VALUES (".$ins.")"; $this->query($sql); } function getinfo($table,$field,$id,$colnum)//取得当条记录详细信息 { $sql="Select * FROM ".$table." Where ".$field."=".$id.""; $query=$this->query($sql); if($this->fetch_row($query)) { for ($i=1;$i<$colnum;$i++) { $info[$i]=odbc_result($query,$i); } } return $info; } function getlist($table,$field,$colnum,$condition,$sort="ORDER BY id DESC")//取得记录列表 { $sql="Select * FROM ".$table." ".$condition." ".$sort; $query=$this->query($sql); $i=0; while ($this->fetch_row($query)) { $recordlist[$i]=getinfo($table,$field,odbc_result($query,1),$colnum); $i++; } return $recordlist; } function getfieldlist($table,$field,$fieldnum,$c,$sort="")//取得记录列表 { $sql="Select ".$field." FROM ".$table." ".$condition." ".$sort; $query=$this->query($sql); $i=0; while ($this->fetch_row($query)) { for ($j=0;$j<$fieldnum;$j++) { $info[$j]=odbc_result($query,$j+1); } $rdlist[$i]=$info; $i++; } return $rdlist; } function updateinfo($table,$field,$id,$set)//更新记录 { $sql="Update ".$table." SET ".$set." Where ".$field."=".$id; $this->query($sql); } function deleteinfo($table,$field,$id)//删除记录 { $sql="Delete FROM ".$table." Where ".$field."=".$id; $this->query($sql); } function deleterecord($table,$condition)//删除指定条件的记录 { $sql="Delete FROM ".$table." Where ".$condition; $this->query($sql); } function getcondrecord($table,$c)// 取得指定条件的记录数 { $sql="Select COUNT(*) AS num FROM ".$table." ".$condition; $query=$this->query($sql); $this->fetch_row($query); $num=odbc_result($query,1); return $num; } } ?>