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
{
$ins.="'".$_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,$cOndition="",$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($table,$cOndition="")// 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;
}
}
?>