function db_mdf($table,$dataA,$id) {
if($table && count($dataA)>0 && $id) {
$setsql='';
$wheresql='';
foreach($dataA as $key=>$val) {
$setsql.=', '.$key.'='.$val;
}
$setsql = ltrim($setsql,',');
$wheresql = " id in(". $id .")";
$sql='update '.$table.' set '.$setsql;
$sql.=' where '.$wheresql;
db_query($sql);
//echo $sql;
}
}

不就一个更新函数么 传入表 数据数组 id