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php中如何連接MSSQL,很多新手對(duì)此不是很清楚,為了幫助大家解決這個(gè)難題,下面小編將為大家詳細(xì)講解,有這方面需求的人可以來(lái)學(xué)習(xí)下,希望你能有所收獲。
1.連接MSSQL
$conn=mssql_connect("實(shí)例名或者服務(wù)器IP","用戶(hù)名","密碼");
//測(cè)試連接
if($conn)
{
echo "連接成功";
}
2.選擇要連接的數(shù)據(jù)庫(kù)
1mssql_select_db("dbname");
3.執(zhí)行查詢(xún)
$rs = mssql_query("select top 1 id,username from tbname",$conn);
// 或者直接執(zhí)行update,insert等語(yǔ)句,可以不用為返回結(jié)果賦值
mssql_query("update tbname set username='niunv' where id=1");
4.獲取記錄集行數(shù)
1echo 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 = $row[1];//獲取username字段值
}
6.獲取新增記錄的ID
將id字段設(shè)置為IDENTITY字段,執(zhí)行insert語(yǔ)句以后,就會(huì)產(chǎn)生一個(gè) @@IDENTITY 全局變量值,查詢(xún)出來(lái)就是最后一條新增記錄的ID了.
mssql_query("insert into tbname(username) values ('nv')",$conn);
$rs = mssql_query("select @@IDENTITY as id",$conn);
if($row=mssql_fetch_array($rs))
{
echo $row[0];
}
7.釋放記錄集
1mssql_free_result($rs);
8.關(guān)閉連接
1mssql_close($conn);
注:用PHP操作MSSQL比在ASP連接MYSQL要簡(jiǎn)單,所以,當(dāng)需要MSSQL與MYSQL并存時(shí),用PHP連接MSSQL來(lái)操作MYSQL與MSSQL并存比較簡(jiǎn)單好用.如果是ASP連接MYSQL,需要安裝一個(gè)MYSQL驅(qū)動(dòng),默認(rèn)windows的ODBC沒(méi)有安裝,很遺憾...
在web服務(wù)器上至少安裝了mssql的客戶(hù)端
打開(kāi)php.ini把;extension=php_mssql.dll 前面的分號(hào)去掉
有必要話:需要制定extension_dir
推薦使用 php<=4.0.9 <=5.0.3目前 5.0.3="" class="" mssql="" var="" linkid="0;" pagenum="0;//分頁(yè)用---共有幾條數(shù)據(jù)" function="" server="" username="" password="" database="" this-="">server = $Server;
$this->userName = $UserName;
$this->passWord = $PassWord;
$this->dataBase = $DataBase;
}
/**
*數(shù)據(jù)庫(kù)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(shù)據(jù)操作
**/
function query($Str){
if ($this->linkID == 0) {
$this->ER = "數(shù)據(jù)庫(kù)還沒(méi)有連接!!";
}
$this->queryResult = mssql_query($Str);
//$this->queryResult = mssql_query($Str,$this->linkID);
if (!$this->queryResult) {
$this->ER = "$Str.沒(méi)有操作成功,query error!!";
return 0;//****************對(duì)于php 4.3.9以上版本的錯(cuò)誤用1
}
return $this->queryResult;
}
/**
*數(shù)據(jù)獲取
**/
function fetch_array($result){
if($result != "") $this->queryResult = $result;
$rec =mssql_fetch_array($this->queryResult);
if(is_array($rec)){
return $rec;
}
//$this->ER = "沒(méi)有獲取數(shù)據(jù)!";
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(shù)
*獲取操作過(guò)的行數(shù)
**/
function num_rows($result=""){
if ($result != "") {
$this->queryResult = $result;
$row = mssql_num_rows($this->queryResult);
return $row;
}
}
/**
*獲取查詢(xún)結(jié)果---多個(gè)
**/
function result_ar($str=''){
if (empty($str)) {
return 0;
}
$back = array();
$this->queryResult = $this->query($str);
while ($row = $this->fetch_array($this->queryResult)) {
$back[] = $row;
}
return $back;
}
/**
*數(shù)據(jù)庫(kù)信息分頁(yè)
*$Result 數(shù)據(jù)庫(kù)操作
*str ==sql語(yǔ)句
*page ==第幾頁(yè)
*showNum ==顯示幾頁(yè)
*/
function page($Str,$Page=0,$ShowNum=5){
$back = array();//返回?cái)?shù)據(jù)
$maxNum = 0;
if ($Str == "") {
$this->ER = "沒(méi)有數(shù)據(jù)";
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){ 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 $back;
}
/**
*分頁(yè)的html頁(yè)碼
*/
function page_html($DataNum=0,$Page=1,$ShowNum=3,$web,$Post=''){
if ($DataNum == 0) {
$back = "沒(méi)有要查詢(xún)的數(shù)據(jù)";
}else {
if ($ShowNum<=0) { $ShowNum = 3; } if ($Page<=0) { $Page = 1; } if (empty($web)) { $web = "#"; } $pageNum = ceil($DataNum/$ShowNum); if ($Page <= 1) { $top = "首頁(yè)<<"; }else { $top = "首頁(yè)<< "; } if ($Page !==1) { $upPage = "上一頁(yè)"; }else { $upPage = "上一頁(yè)"; } if ($Page < $pageNum) { $downPage = "下一頁(yè)"; }else { $downPage = "下一頁(yè)"; } if ($Page == $pageNum) { $foot = ">>尾頁(yè)";
}else {
$foot = " >>尾頁(yè)";
}
$back = << 共 $pageNum 頁(yè) 第 $Page/$pageNum 頁(yè) $top $upPage $downPage $foot EOT; } return $back; } }//end class ?>
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