Question

我正在尝试通过php从apache linux服务器打开Windows计算机上的SQL Server 2008连接。我已经在防火墙上打开了相应的端口，但是我得到了最模糊的错误

警告：mssql_connect（）[function.mssql-connect]：无法连接到服务器：xxx.xxx.xx.xxx，xxxx

使用：

$myServer = "xxx.xxx.xx.xxx,1433"; //with port number; tried both backslash and colon
$myUser = "un";
$myPass = "pw";
$myDB = "db"; 

//connection to the database
$dbhandle = mssql_connect($myServer, $myUser, $myPass)
  or die( mssql_get_last_message());

是否有某种方法可以获得更具体的错误消息？或者某种方式，我可以测试两台计算机是否正在进行通信，以便我可以尝试开始本地化问题？

Answer 1

这是我用来将PHP连接到MSSQL从Ubuntu机器连接到Windows SQL Server的代码，我不知道它是否会对你有所帮助，但是这段代码现在已经成功运行，所以我知道它可以在我们的环境...

如您所见，我使用PDO而不是mssql_ *函数。在Ubuntu上，我需要安装php5-sybase软件包来获取dblib驱动程序。

PHP：

<?php
try{
   $con = new PDO("dblib:dbname=$dbname;host=$servername", $username, $password);
}catch(PDOException $e){
   echo 'Failed to connect to database: ' . $e->getMessage() . "\n";
   exit;
}
?>

/etc/odbc.ini

# Define a connection to the MSSQL server.
# The Description can be whatever we want it to be.
# The Driver value must match what we have defined in /etc/odbcinst.ini
# The Database name must be the name of the database this connection will connect to.
# The ServerName is the name we defined in /etc/freetds/freetds.conf
# The TDS_Version should match what we defined in /etc/freetds/freetds.conf
[mssqldb]
Description             = MSSQL Server
Driver                  = freetds
Database                = MyDB
ServerName              = mssqldb
TDS_Version             = 8.0

/etc/odbcinst.ini

# Define where to find the driver for the Free TDS connections.
[freetds]
Description     = MS SQL database access with Free TDS
Driver          = /usr/lib/i386-linux-gnu/odbc/libtdsodbc.so
Setup           = /usr/lib/i386-linux-gnu/odbc/libtdsS.so
UsageCount      = 1

/etc/freetds/freetds.conf

[global]
        # If you get out-of-memory errors, it may mean that your client
        # is trying to allocate a huge buffer for a TEXT field.  
        # Try setting 'text size' to a more reasonable limit 
        text size = 64512

# Define a connection to the MSSQL server.
[mssqldb]
        host = mssqldb
        port = 1433
        tds version = 8.0

Answer 2

我今天遇到了同样的问题。这对我有用：

而不是这个

$myServer = "xxx.xxx.xx.xxx,1433"; //with port number; tried both backslash and colon

试试这个：

$myServer = "mssqldb"; //must correspond to [entry] in freetds.conf file

在您的情况下，为了清楚起见，我将重命名该条目并将完全限定的主机名用于配置文件中的条目

# Define a connection to the MSSQL server.
[mssqldbAlias]
        host = mssqldb.mydomain.com
        port = 1433
        tds version = 8.0

调用mssql_connect（）的第一个参数必须与freetds.conf文件中的[entry]对应。 所以你的电话就变成了

$myServer = "mssqldbAlias"; 
//connection to the database
$dbhandle = mssql_connect($myServer, $myUser, $myPass)
  or die( mssql_get_last_message());

Apache不会使用PHP连接到SQL Server

2 个答案: