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php连接mssql的一些相关经验和总结

Jun 13, 2016 am 10:54 AM
mssql php for and Install Summarize of Related system experience able connect need

    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 //更多 http://www.52mvc.com

       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

  4.数据库的   连接分页可以   到     phpe.net上获取到相应的class   

  下面是我根据那里   修改的   一个class   

 

  /**   

  *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($dd&&$nopa

  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

  $ShowNum   =   3;   

  }   

  if   ($Page

  $Page   =   1;   

  }   

  if   (empty($web))   {   

  $web   =   "#";   

  }   

  $pageNum   =   ceil($DataNum/$ShowNum);   

  if   ($Page  

  $top   =     "首页

  }else   {   

  $top   =   "首页";   

  }   

  if   ($Page   !==1)   {   

  $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   

  ?>

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