PDO_DBLIB DSN

(PECL PDO_DBLIB >= 0.9.0)

PDO_DBLIB DSN — Connecting to Microsoft SQL Server and Sybase databases

说明

The PDO_DBLIB Data Source Name (DSN) is composed of the following elements:

DSN prefix: The DSN prefix is sybase: if PDO_DBLIB was linked against the Sybase ct-lib libraries, mssql: if PDO_DBLIB was linked against the Microsoft SQL Server libraries, or dblib: if PDO_DBLIB was linked against the FreeTDS libraries.
host: The hostname on which the database server resides. Defaults to 127.0.0.1.
dbname: The name of the database.
charset: The client character set.
appname: The application name (used in sysprocesses). Defaults to "PHP Generic DB-lib" or "PHP freetds".
secure: Currently unused.

范例

示例 #1 PDO_DBLIB DSN examples

The following examples show a PDO_DBLIB DSN for connecting to Microsoft SQL Server and Sybase databases:

mssql:host=localhost;dbname=testdb
sybase:host=localhost;dbname=testdb
dblib:host=localhost;dbname=testdb

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User Contributed Notes 6 notes

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Anonymous ¶

6 years ago


Instead of specifying tds version and client charset in freetds.conf, you may pass it as a parameter.
<?php $dsn = 'dblib:version=7.0;charset=UTF-8;host=domain.example.com;dbname=example;'; ?>

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michal at durys dot pl ¶

9 years ago


If you're using FreeTDS driver and you want to use "charset" parameter then you may have to edit freetds.conf (e.g. /etc/freetds/freetds.conf) and force connection using at least version 7.0 of the protocol.

tds version = 7.0

Charset parameter accepts all encodings supported by iconv (execute iconv --list to show all encodings).

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Anonymous ¶

4 years ago


Blank (not null) columns retrieved from SQL Server 2014 were returning a single space.

Setting "tds version = 7.0" in /etc/freetds/freetds.conf fixed the issue.

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aero2sing at hotmail dot com ¶

9 years ago


Be careful if you are using dblib with prepared statement, as it will crash if first execution didn't return anything.

referring to https://bugs.php.net/bug.php?id=40639

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slach at 74mail dot ru ¶

13 years ago


when you connect to non standart 1433 port

for win32 use DSN like 'mssql:host=hostname,port;dbname=database'

for FreeTDS and DB-Lib use DSN like  'mssql:host=hostname:port;dbname=database'

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-26

ulisse at atc dot bologna dot it ¶

12 years ago


on Linux ppc64 / PHP 5.1.2 / freetds-0.64 works well this way:


<?php

// ...

$dbh = new PDO("dblib:host=$hostdb;dbname=$dbname", $usr, $psw);

// ...

?>

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官方地址：https://www.php.net/manual/en/ref.pdo-dblib.connection.php

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PDO_DBLIB DSN

说明

范例

User Contributed Notes 6 notes