php连接数据库的四种方法

3. $conn = new Com("ADODB.Connection"); //实例化一个Connection对象

4. $connstr = "provider=sqloledb;datasource=.;uid=用户名;pwd=密码;database=数据库;";
5. $conn->Open($connstr);
6. $rs = new Com("ADODB.Recordset"); //实例化一个Recordcount对象
7. /*使用实例*/
8. $rs->Open('select * from News where bigclassid = 59 And LeadPostil is null', $conn, 1, 1);
9. $count = $rs->RecordCount; // bbs.it-home.org
10. echo "共有{$count}条纪录
    ";
11. for($i = 0; $i

12. $arr_result[$i]['Title'] = addslashes($rs->Fields('Title')->Value);//标题

13. $arr_result[$i]['Color'] = addslashes($rs->Fields('titlecolor')->Value?$rs->Fields('titlecolor')->Value:'');//标题颜色
14. $arr_result[$i]['WenHao'] = addslashes($rs->Fields('OtherText')->Value);//文号
15. }

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方法2，odbc连接数据库

3. $dbhost = '';

4. $dbuser = ''; //你的mssql用户名
5. $dbpass = ''; //你的mssql密码
6. $dbname = ''; //你的mssql库名

7. $connect=odbc_connect("Driver={SQL Server};Server=$dbhost;Database=$dbname","$dbuser","$dbpass");

8. /*实例测试*/
9. $sql="select * from content";
10. $exec=odbc_exec($connect,$sql);
11. while($row = (odbc_fetch_array($exec)))
12. {
13. $row['id'] //獲取字段值
14. ...
15. }

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方法3，php内置函数连接： 打开装有php5和apache的服务器上的php.ini文件 去掉;extension=php_mysql.dll前面的分号";" 重启apache服务器。

3. $dbh=mysql_connect("主机名","用户","密码");
4. mssql_select_db("mydb", $dbh);
5. ?>

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方法4，连接Access数据方法

2. $db=$_SERVER['DOCUMENT_ROOT']."/PHP_ACCESS/include/#mydb.mdb"; //這裏最好用$_SERVER['DOCUMENT_ROOT']获取路径
3. $conn = new COM('ADODB.Connection') or die('can not start Active X Data Objects');
4. $conn->Open("DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=$db");
5. $rs = $conn->Execute('SELECT * FROM contents order by id desc');
6. while(!$rs->EOF)
7. {
8. echo $rs->Fields['name']->Value;
9. $rs->MoveNext();
10. }
11. /*释放资源*/
12. $rs->Close();
13. $conn->Close();
14. $rs = null;
15. $conn = null;

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