為了能讓PHP連接MSSQL,系統需要安裝MSSQL,PHP,且在PHP.ini中的配置中,將 ;extension=php_mssql.dll前面的;去掉
1.連接MSSQL
$conn=mssql_connect("實例名或者服務器IP","用戶名","密碼");
//測試連接
if($conn)
{
echo "連接成功";
}
2.選擇要連接的數據庫
mssql_select_db("dbname");
3.執行查詢
$rs = mssql_query("select top 1 id,username from tbname",$conn);
// 或者直接執行update,insert等語句,可以不用為返回結果賦值
mssql_query("update tbname set username='niunv' where id=1");
4.獲取記錄集行數
echo mssql_num_rows($rs);
5.獲取記錄集
if($row=mssql_fetch_array($rs))
{
$id = $row[0];//獲取ID字段值
$username = $row[1];//獲取username字段值
}
6.獲取新增記錄的ID
將id字段設置為IDENTITY字段,執行insert語句以後,就會產生一個 @@IDENTITY 全局變量值,查詢出來就是最後一條新增記錄的ID了.
mssql_query("insert into tbname(username) values ('nv')",$conn);
$rs = mssql_query("select @@IDENTITY as id",$conn);
if($row=mssql_fetch_array($rs))
{
echo $row[0];
}
7.釋放記錄集
mssql_free_result($rs);
8.關閉連接
mssql_close($conn);
注:用PHP操作MSSQL比在ASP連接MYSQL要簡單,所以,當需要MSSQL與MYSQL並存時,用PHP連接MSSQL來操作MYSQL與MSSQL並存比較簡單好用.如果是ASP連接MYSQL,需要安裝一個MYSQL驅動,默認windows的ODBC沒有安裝,很遺憾...
下面是我修改的 一個class
<?php
/**
*mssql 數據庫連接類
**/
class SQL{
var $server;
var $userName;
var $passWord;
var $dataBase;
var $linkID = 0;
var $queryResult;
var $lastInsertID;
var $pageNum = 0;//分頁用---共有幾條數據
var $ER;
/**
*構造函數
**/
function SQL($Server='',$UserName='',$PassWord='',$DataBase=''){
$this->server = $Server;
$this->userName = $UserName;
$this->passWord = $PassWord;
$this->dataBase = $DataBase;
}
/**
*數據庫連接
**/
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;
}
/**
*數據操作
**/
function query($Str){
if ($this->linkID == 0) {
$this->ER = "數據庫還沒有連接！！";
}
$this->queryResult = mssql_query($Str);
//$this->queryResult = mssql_query($Str,$this->linkID);
if (!$this->queryResult) {
$this->ER = "$Str.沒有操作成功,query error！！";
return 0;//****************對於php 4.3.9以上版本的錯誤用1
}
return $this->queryResult;
}
/**
*數據獲取
**/
function fetch_array($result){
if($result != "") $this->queryResult = $result;
$rec =mssql_fetch_array($this->queryResult);
if(is_array($rec)){
return $rec;
}
//$this->ER = "沒有獲取數據！";
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);
}
/**
*獲取影響的的行數
*獲取操作過的行數
**/
function num_rows($result=""){
if ($result != "") {
$this->queryResult = $result;
$row = mssql_num_rows($this->queryResult);
return $row;
}
}
/**
*獲取查詢結果---多個
**/
function result_ar($str=''){
if (empty($str)) {
return 0;
}
$back = array();
$this->queryResult = $this->query($str);
while ($row = $this->fetch_array($this->queryResult)) {
$back[] = $row;
}
return $back;
}
/**
*數據庫信息分頁
*$Result 數據庫操作
*str ==sql語句
*page ==第幾頁
*showNum ==顯示幾頁
*/
function page($Str,$Page=0,$ShowNum=5){
$back = array();//返回數據
$maxNum = 0;
if ($Str == "") {
$this->ER = "沒有數據";
return 0;
}
$this->queryResult = $this->query($Str);
if($this->queryResult){
if($Page==""){
$nopa=0;
}else{
$nopa = ($Page-1)*$ShowNum;
if ($nopa<0) {
$nopa = 0;
}
}
$maxNum=$this->num_rows($this->queryResult);
$k=0;
$i=0;
$dd=$this->fetch_array($this->queryResult);
while($dd&&$nopa<=$maxNum&&$i<$ShowNum){
if($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 $back;
}
/**
*分頁的html頁碼
*/
function page_html($DataNum=0,$Page=1,$ShowNum=3,$web,$Post=''){
if ($DataNum == 0) {
$back = "沒有要查詢的數據";
}else {
if ($ShowNum<=0) {
$ShowNum = 3;
}
if ($Page<=0) {
$Page = 1;
}
if (empty($web)) {
$web = "#";
}
$pageNum = ceil($DataNum/$ShowNum);
if ($Page <= 1) {
$top = "首頁<<";
}else {
$top = "<a href='".$web."?page=0&".$Post."' target='_self'>首頁<< </a>";
}
if ($Page !==1) {
$upPage = "<a href='".$web."?page=".($Page-1)."&".$Post."' target='_self'>上一頁</a>";
}else {
$upPage = "上一頁";
}
if ($Page < $pageNum) {
$downPage = "<a href='".$web."?page=".($Page+1)."&".$Post."' target='_self'>下一頁</a>";
}else {
$downPage = "下一頁";
}
if ($Page == $pageNum) {
$foot = ">>尾頁";
}else {
$foot = "<a href='".$web."?page=".$pageNum."&".$Post."' target='_self'> >>尾頁</a>";
}
$back = <<<EOT
共 $pageNum 頁
第 $Page/$pageNum 頁 $top $upPage $downPage $foot
EOT;
}
return $back;
}
}//end class
?>
以上就是PHP連接MSSQL方法的總結，希望對大家的學習有所幫助。
