使用PHP FreeTDS扩展从MSSQL服务器获取UTF-8字符集的数据

Question

我似乎无法使用FreeTDS扩展从MSSQL编码为UTF-8的数据.

连接:

ini_set('mssql.charset', 'UTF-8');
$this->_resource = mssql_connect($config['servername'], $config['username'], $config['password']);

我无法使用任何其他扩展程序.

我试过创建〜/ .freetds.conf

[global]
client charset = UTF-8

我已经尝试将参数传递给php:

php -d mssql.charset="UTF-8" index.php

数据仍然不是UTF-8.

php -i

mssql

MSSQL Support => enabled
Active Persistent Links => 0
Active Links => 0
Library version => FreeTDS

Directive => Local Value => Master Value
mssql.allow_persistent => On => On
mssql.batchsize => 0 => 0
mssql.charset => no value => no value
mssql.compatability_mode => Off => Off
mssql.connect_timeout => 5 => 5
mssql.datetimeconvert => On => On
mssql.max_links => Unlimited => Unlimited
mssql.max_persistent => Unlimited => Unlimited

想法？

Answer 1

我遇到了类似的问题并尝试了我在网上找到的所有设置 - 徒劳无功.

在我的情况下,问题是FreeTDS本身的配置.在Linux上,该文件是/etc/freetds/freetds.conf

我不得不将版本更改为7.0(也许其他数字也可以.我只试过7.0)

[global]
    # TDS protocol version
    tds version = 7.0

在此之后,司机似乎接受了charset的变化.

ini_set('mssql.charset', 'UTF-8');

顺便说一下:更改立即生效,之后无需重启

Answer 2

MSSQL和UTF-8在...中非常痛苦.我不得不手动转换它.问题:MSSQL实际上并不知道并支持UTF-8.

从数据库值转换为UTF-8:

mb_detect_encoding($value, mb_detect_order(), true) === 'UTF-8' ? $value : mb_convert_encoding($value, 'UTF-8');

从UTF-8转换为数据库值:

mb_convert_encoding($value, 'UCS-2LE', mb_detect_encoding($value, mb_detect_order(), true));

幸运的是我使用的是Doctrine,所以我只需要创建一个自定义的StringType实现.

Answer 3

如果您使用freeTDS,则应更改以下行/etc/freetds/freetds.conf:

[global]
# TDS protocol version
tds version = 4.2

对此:

[global]
# TDS protocol version
tds version = 8.0
;tds version = 4.2

最后添加这一行:

# set charset
client charset = UTF-8

**clinet charset在全球[范围]

在您的查询中,您应该使用N字符.像这样:

$query = "INSERT INTO dbo.SMSOutbox (StationID, Dest, Text) VALUES ";
   $query .= '(';
   $query .= "'" . $this->stationId . "', ";
   $query .= "'" . $this->destination . "', ";
   $query .= "N'" . $this->text . "'";
   $query .= ')';

Answer 4

您还可以通过在连接到DB之前在$ connectionInfo中添加CharacterSet UTF-8来解决此问题.

$serverName = "MyServer";
$connectionInfo = array( "Database"=>"AdventureWorks", "CharacterSet" => "UTF-8");
$conn = sqlsrv_connect( $serverName, $connectionInfo);

工作正常不需要额外的编码.