为了能让PHP连接MSSQL,系统需要安装MSSQL,PHP,且在PHP.ini中的配置中,将 ;extension=php_mssql.dll前面的;去掉
1.连接MSSQL
$conn=mssql_connect("实例名或者服务器IP","用户名","密码"); //测试连接 if($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 $row[0]; }
7.释放记录集
mssql_free_result($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...
- 在web服务器上至少安装了mssql的客户端
- 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
- 推荐使用 php
- 数据库的 连接分页可以到phpe.net上获取到相应的class
下面是我修改的 一个class
<?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<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<=0) { $ShowNum = 3; } if ($Page<=0) { $Page = 1; } if (empty($web)) { $web = "#"; } $pageNum = ceil($DataNum/$ShowNum); if ($Page <= 1) { $top = "首页<<"; }else { $top = "<a href='".$web."?page=0&".$Post."' target='_self'>首页<< </a>"; } if ($Page !==1) { $upPage = "<a href='".$web."?page=".($Page-1)."&".$Post."' target='_self'></a>"; }else { $downPage = "下一页"; } if ($Page == $pageNum) { $foot = ">>尾页"; }else { $foot = "<a href='".$web."?page=".$pageNum."&".$Post."' target='_self'> >>尾页</a>"; } $back = <<<EOT 共 $pageNum 页 第 $Page/$pageNum 页 $top $upPage $downPage $foot EOT; } return $back; } }//end class ?>
以上就是PHP连接MSSQL方法的总结,希望对大家的学习有所帮助。

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