有关php连接mssql的一些总结

$conn=mssql_connect("实例名或者服务器IP","用户名","密码");

//测试连接
if($conn)
{
echo "连接成功";
}

2、选择要连接的数据库

mssql_select_db("dbname");

3、执行查询

$rs = mssql_query("select top 1 id,username from tbname",$conn);
或者直接执行update,insert等语句,可以不用为返回结果赋值
mssql_query("update tbname set username='niunv' where id=1");

4、获取记录集行数

echo mssql_num_rows($rs);

5、获取记录集

if($row=mssql_fetch_array($rs))
{
$id = $row[0];//获取ID字段值
$username = $row[1];//获取username字段值
}

6、获取新增记录的ID 将id字段设置为IDENTITY字段,执行insert语句以后,就会产生一个 @@IDENTITY 全局变量值,查询出来就是最后一条新增记录的ID了.

mssql_query("insert into tbname(username) values ('nv')",$conn);
$rs = mssql_query("select @@IDENTITY as id",$conn);
if($row=mssql_fetch_array($rs))
{
echo $row[0];
}

7、释放记录集 //更多

mssql_free_result($rs);

8.关闭连接

mssql_close($conn);

注:用PHP操作MSSQL比在ASP连接MYSQL要简单,所以,当需要MSSQL与MYSQL并存时,用PHP连接MSSQL来操作MYSQL与MSSQL并存比较简单好用.如果是ASP连接MYSQL,需要安装一个MYSQL驱动,默认windows的ODBC没有安装,很遗憾...

1.在web服务器上至少安装了mssql的客户端 2.打开php.ini把;extension=php_mssql.dll 前面的分号去掉 有必要话：需要制定extension_dir 3.推荐使用 php

/**
*mssql   数据库连接类
**/
class   SQL{

var   $server;
var   $userName;
var   $passWord;
var   $dataBase;

var   $linkID   =   0;
var   $queryResult;
var   $lastInsertID;

var   $pageNum   =   0;//分页用---共有几条数据
var   $ER;

/**
*构造函数
**/
function     SQL($Server='',$UserName='',$PassWord='',$DataBase=''){
$this->server   =   $Server;
$this->userName   =   $UserName;
$this->passWord   =   $PassWord;
$this->dataBase   =   $DataBase;
}
/**
*数据库连接
**/
function   db_connect(){
$this->linkID   =   mssql_pconnect($this->server,$this->userName,$this->passWord);
if(!$this->linkID){
$this->ER   =   "db_connect($this->server,$this->userName,$this->passWord)   error";
return   0;
}
if   (!mssql_select_db($this->dataBase,$this->linkID))   {
$this->ER   =   "mssql_select_db($this->dataBase,$this->lastInsertID)   error";
return   0;
}
return   $this->linkID;
}

/**public
*     function:   Check   the   database,   if   exist   then   select
*     exist:   return   1
*     not   exist:   return   0
*/
function   selectDatabase(){
if(mssql_select_db($this->dataBase))
return   1;
else
return   0;
}

/**
*数据操作
**/
function     query($Str){
if   ($this->linkID   ==   0)   {
$this->ER   =   "数据库还没有连接！！";
}

$this->queryResult   =   mssql_query($Str);
//$this->queryResult   =   mssql_query($Str,$this->linkID);
if   (!$this->queryResult)   {
$this->ER   =   "$Str.没有操作成功,query   error！！";
return   0;//****************对于php   4.3.9以上版本的错误用1
}
return   $this->queryResult;
}

/**
*数据获取
**/
function   fetch_array($result){
if($result   !=   "")   $this->queryResult   =   $result;
$rec   =mssql_fetch_array($this->queryResult);

if(is_array($rec)){
return   $rec;
}

//$this->ER   =   "没有获取数据！";
return   0;
}

/**public
*     function:   Free   the   Query   Result
*     success   return   1
*     failed:   return   0
*/
function   freeResult($result=""){
if($result   !=   "")   $this->queryResult   =   $result;
return   mssql_free_result($this->queryResult);
}

/**
*获取影响的的行数
*获取操作过的行数
**/
function   num_rows($result=""){
if   ($result   !=   "")   {
$this->queryResult   =   $result;
$row   =   mssql_num_rows($this->queryResult);
return   $row;
}
}

/**
*获取查询结果---多个
**/
function   result_ar($str=''){
if   (empty($str))   {
return   0;
}
$back   =   array();
$this->queryResult   =   $this->query($str);

while   ($row   =   $this->fetch_array($this->queryResult))   {
$back[]   =   $row;
}
return   $back;
}

/**
*数据库信息分页
*$Result   数据库操作
*str   ==sql语句
*page   ==第几页
*showNum   ==显示几页
*/
function   page($Str,$Page=0,$ShowNum=5){
$back   =   array();//返回数据
$maxNum   =   0;
if   ($Str   ==   "")   {
$this->ER   =   "没有数据";
return     0;
}
$this->queryResult   =   $this->query($Str);
if($this->queryResult){
if($Page==""){
$nopa=0;
}else{
$nopa   =   ($Page-1)*$ShowNum;
if   ($nopa$nopa   =   0;
}
}
$maxNum=$this->num_rows($this->queryResult);
$k=0;
$i=0;
$dd=$this->fetch_array($this->queryResult);

while($dd&&$nopaif($nopa   >=   $maxNum)     $nopa   =   $maxNum;
mssql_data_seek($this->queryResult,$nopa);

$row=$this->fetch_array($this->queryResult);

$nopa++;
$i++;
$back[]   =   $row;

if   ($nopa   >=$maxNum)   {
break;
}
}
}
$this->pageNum   =   $maxNum;
return   $back;
}

/**
*分页的html页码
*/
function     page_html($DataNum=0,$Page=1,$ShowNum=3,$web,$Post=''){
if   ($DataNum   ==   0)   {
$back   =     "没有要查询的数据";
}else   {
if   ($ShowNum$ShowNum   =   3;
}
if   ($Page$Page   =   1;
}
if   (empty($web))   {
$web   =   "#";
}
$pageNum   =   ceil($DataNum/$ShowNum);
if   ($Page   $top   =     "首页}else   {
$top   =   "首页";
}
$upPage   =     "上一页";
}else   {
$upPage   =   "上一页";
}
if   ($Page   $downPage   =   "下一页";
}else   {
$downPage   =   "下一页";
}
if   ($Page   ==   $pageNum)   {
$foot   =   ">>尾页";
}else   {
$foot   =   "   >>尾页";
}

$back   =
共   $pageNum   页
第   $Page/$pageNum   页   $top       $upPage       $downPage         $foot
EOT;
}
return   $back;
}
}//end   class
?>