如何在CentOS 7.6中使用sqlsrv连接到SQL服务器？

问题描述 投票：0回答：1

我正在设置一个新服务器并尝试使用在CentOS 7.6中运行的PHP 7.3的“sqlsrv”扩展/模块连接到Microsoft SQL Server Express 2014的数据库，但是失败了。但是，使用XAMPP中的相同方法，它确实有效！

我根据Microsoft页面的说明安装了php驱动程序：https://docs.microsoft.com/en-us/sql/connect/php/installation-tutorial-linux-mac?view=sql-server-2017

在第3步中，前两种方法不起作用，所以我从Remi repo安装了PHP驱动程序：

[〜] $ sudo yum install php-sqlsrv

以下是已安装软件包的列表：

$ sudo yum list installed *php*
Installed Packages
php.x86_64                                                7.3.4-1.el7.remi                                   @remi-php73
php-cli.x86_64                                            7.3.4-1.el7.remi                                   @remi-php73
php-common.x86_64                                         7.3.4-1.el7.remi                                   @remi-php73
php-devel.x86_64                                          7.3.4-1.el7.remi                                   @remi-php73
php-fedora-autoloader.noarch                              1.0.0-1.el7                                        @epel
php-json.x86_64                                           7.3.4-1.el7.remi                                   @remi-php73
php-pdo.x86_64                                            7.3.4-1.el7.remi                                   @remi-php73
php-pear.noarch                                           1:1.10.9-2.el7.remi                                @remi-php73
php-process.x86_64                                        7.3.4-1.el7.remi                                   @remi-php73
php-sqlsrv.x86_64                                         5.6.1-1.el7.remi.7.3                               @remi-php73
php-xml.x86_64                                            7.3.4-1.el7.remi                                   @remi-php73

$ sudo yum list installed unixODBC*
Installed Packages
unixODBC.x86_64                                    2.3.7-1.rh                               @packages-microsoft-com-prod
unixODBC-devel.x86_64                              2.3.7-1.rh                               @packages-microsoft-com-prod

$ sudo yum list installed msodbcsql*
Installed Packages
msodbcsql.x86_64                                  13.1.9.2-1                                @packages-microsoft-com-prod
msodbcsql17.x86_64                                17.3.1.1-1                                @packages-microsoft-com-prod

虽然，我没有使用命名实例，但根据这个FAQ：https://github.com/Microsoft/msphpsql/wiki/FAQ#connect-to-named-instances

我可以使用独立于PHP驱动程序的ODBC驱动程序连接到Microsoft SQL Server。通过使用“isql”：

[〜] $ isql -v MSSQLTest uid密码

我经历过的一些类似问题是：

https://github.com/Microsoft/msphpsql/issues/703
https://github.com/Microsoft/msphpsql/issues/679
https://github.com/Microsoft/msphpsql/issues/470

但是当使用sqlsrv时，没有任何作用。

我的PHP连接代码（在XAMPP中工作）：

// xx.xx.xx.xx = My Public IP
// yyyy = My Port
$serverName = "xx.xx.xx.xx,yyyy"; //serverName\instanceName
$connectionInfo = array( "Database"=>"MyDB", "UID"=>"MyUID", "PWD"=>"MyPWD", "CharacterSet" => "UTF-8");
$conn = sqlsrv_connect( $serverName, $connectionInfo);

if( $conn ) {
     echo "Connection established.<br />";
}else{
     echo "Connection could not be established.<br />";
     die( print_r( sqlsrv_errors(), true));
} 

// ...Query part

输出：

Connection could not be established.
Array ( [0] => Array ( [0] => HYT00 [SQLSTATE] => HYT00 [1] => 0 [code] => 0 [2] => [Microsoft][ODBC Driver 17 for SQL Server]Login timeout expired [message] => [Microsoft][ODBC Driver 17 for SQL Server]Login timeout expired ) [1] => Array ( [0] => 08001 [SQLSTATE] => 08001 [1] => 10013 [code] => 10013 [2] => [Microsoft][ODBC Driver 17 for SQL Server]TCP Provider: Error code 0x271D [message] => [Microsoft][ODBC Driver 17 for SQL Server]TCP Provider: Error code 0x271D ) [2] => Array ( [0] => 08001 [SQLSTATE] => 08001 [1] => 10013 [code] => 10013 [2] => [Microsoft][ODBC Driver 17 for SQL Server]A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online. [message] => [Microsoft][ODBC Driver 17 for SQL Server]A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online. ) )

如何获得“建立连接”？

根据Remi Collet的回答更新：

$ sqlcmd -S mypublicip，myport -U user -P secret -Q“SELECT @@ version”

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Microsoft SQL Server 2014 - 12.0.2000.8 (X64)
        Feb 20 2014 20:04:26
        Copyright (c) Microsoft Corporation
        Express Edition (64-bit) on Windows NT 6.3 <X64> (Build 14393: )

$ php -r'echo“+连接：\ n”; $ conn = sqlsrv_connect（“mypublicip，myport”，array（“UID”=>“user”，“PWD”=>“secret”））; if（$ conn）{echo“+ Query：\ n”; $ query = sqlsrv_query（$ conn，“SELECT @@ version”）; if（$ query）{echo“+ Result：\ n”; print_r（$ row = sqlsrv_fetch_array（$ query，SQLSRV_FETCH_NUMERIC））; }}'

+ Connection:
+ Query:
+ Result:
Array
( 
    [0] => Microsoft SQL Server 2014 - 12.0.2000.8 (X64)
        Feb 20 2014 20:04:26
        Copyright (c) Microsoft Corporation
        Express Edition (64-bit) on Windows NT 6.3 <X64> (Build 14393: )

)

如您所见，sqlcmd和命令行中运行的PHP脚本都正常工作！

但是在通过FTP上传相同的PHP脚本并从浏览器访问之后，输出如下：

+ Connection:

只需一行。然后，我将php-sqlsrv更新为5.6.1-2.el7.remi.7.3

并且，SELinux配置已完成：

$ sudo setsebool -P httpd_can_network_connect_db 1

这是“getsebool”的值：

httpd_anon_write --> off
httpd_builtin_scripting --> on
httpd_can_check_spam --> off
httpd_can_connect_ftp --> off
httpd_can_connect_ldap --> off
httpd_can_connect_mythtv --> off
httpd_can_connect_zabbix --> off
httpd_can_network_connect --> off
httpd_can_network_connect_cobbler --> off
httpd_can_network_connect_db --> on
httpd_can_network_memcache --> off
httpd_can_network_relay --> off
httpd_can_sendmail --> off
httpd_dbus_avahi --> off
httpd_dbus_sssd --> off
httpd_dontaudit_search_dirs --> off
httpd_enable_cgi --> on
httpd_enable_ftp_server --> off
httpd_enable_homedirs --> on
httpd_execmem --> off
httpd_graceful_shutdown --> on
httpd_manage_ipa --> off
httpd_mod_auth_ntlm_winbind --> off
httpd_mod_auth_pam --> off
httpd_read_user_content --> off
httpd_run_ipa --> off
httpd_run_preupgrade --> off
httpd_run_stickshift --> off
httpd_serve_cobbler_files --> off
httpd_setrlimit --> off
httpd_ssi_exec --> off
httpd_sys_script_anon_write --> off
httpd_tmp_exec --> off
httpd_tty_comm --> off
httpd_unified --> on
httpd_use_cifs --> off
httpd_use_fusefs --> off
httpd_use_gpg --> off
httpd_use_nfs --> off
httpd_use_openstack --> off
httpd_use_sasl --> off
httpd_verify_dns --> off

不幸的是，仍然得到与使用版本5.6.1-1.el7.remi.7.3时相同的结果

注意：我仍然有两个版本的Microsoft ODBC驱动程序用于SQL Server，13和17（我不确定这是否会导致问题，并且不知道删除旧版本）

附：我没有尝试过其他方法，因为我现在只对sqlsrv扩展感兴趣，所以其他方法可能会工作！

最近更新时间：

原因：SELinux配置中“httpd_can_network_connect”的值设置为“off”。

解决方案：通过此命令打开“httpd_can_network_connect”值。

$ sudo setsebool -P httpd_can_network_connect 1

然后让httpd重启一次：

$ sudo systemctl restart httpd

检查结果，现在，一切都像魅力一样！

php sql-server sqlsrv windows-server-2016 centos7.6
1个回答
0
投票

抱歉，但是使用Microsoft SQL Server from PHP的所有示例，我无法重现您的问题。连接工作。

  • 检查服务器是否已准备好服务器客户端连接
  • 检查防火墙配置（应该允许至少1433，检查netstat使用的端口）
  • 使用sqlcmd命令从命令行检查（来自mssql-tools包）
  • 使用简单的PHP脚本从命令行检查
  • 检查SElinux配置（httpd_can_network_connect）

附：注意我推了一个php-sqlsrv的小更新，正确地拉了msodbcsql17而不是msodbcsql。

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