php-doc-en/reference/pdo_dblib/reference.xml

<?xml version="1.0" encoding="UTF-8"?>
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 <reference xml:id="ref.pdo-dblib" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <title>Microsoft SQL Server and Sybase Functions (PDO_DBLIB)</title>
  <titleabbrev>MS SQL Server (PDO)</titleabbrev>
  <partintro>

   <section xml:id="pdo-dblib.intro">
   &reftitle.intro;
    <para>
     &warn.experimental;
     PDO_DBLIB is a driver that implements the <link linkend="intro.pdo">PHP
     Data Objects (PDO) interface</link> to enable access from PHP to
     Microsoft SQL Server and Sybase databases through the FreeTDS libary.
    </para>
    <para>
     This extension is not available anymore on Windows with PHP 5.3 or later.
    </para>
    <para>
     On Windows, you should use SqlSrv, an alternative driver for MS SQL is 
     available from Microsoft: <link xlink:href="&url.sqlsrv;">&url.sqlsrv;
     </link>.
    </para>
    <para>
     If it is not possible to use SqlSrv, you can use the 
     <link linkend="ref.pdo-odbc">PDO_ODBC</link> driver to connect to 
     Microsoft SQL Server and Sybase databases, as the native Windows DB-LIB 
     is ancient, thread un-safe and no longer supported by Microsoft.
    </para>
   </section>
  </partintro>

  <refentry xml:id="ref.pdo-dblib.connection">
   <refnamediv>
    <refname>PDO_DBLIB DSN</refname>
    <refpurpose>Connecting to Microsoft SQL Server and Sybase databases</refpurpose>
   </refnamediv>

   <refsect1 role="description">
    &reftitle.description;
    <para>
     The PDO_DBLIB Data Source Name (DSN) is composed of the following elements:
     <variablelist>
      <varlistentry>
       <term>DSN prefix</term>
       <listitem>
        <para>
         The DSN prefix is <userinput>sybase:</userinput> if PDO_DBLIB was
         linked against the Sybase ct-lib libraries,
         <userinput>mssql:</userinput> if PDO_DBLIB was linked against the
         Microsoft SQL Server libraries, or <userinput>dblib:</userinput> if
         PDO_DBLIB was linked against the FreeTDS libraries.
        </para>
       </listitem>
      </varlistentry>
      <varlistentry>
       <term><literal>host</literal></term>
       <listitem>
        <para>
         The hostname on which the database server resides.
         Defaults to 127.0.0.1.
        </para>
       </listitem>
      </varlistentry>
      <varlistentry>
       <term><literal>dbname</literal></term>
       <listitem>
        <para>
         The name of the database.
        </para>
       </listitem>
      </varlistentry>
      <varlistentry>
       <term><literal>charset</literal></term>
       <listitem>
        <para>
         The client character set.
        </para>
       </listitem>
      </varlistentry>
      <varlistentry>
       <term><literal>appname</literal></term>
       <listitem>
        <para>
         The application name (used in sysprocesses).
         Defaults to "PHP Generic DB-lib" or "PHP freetds".
        </para>
       </listitem>
      </varlistentry>
      <varlistentry>
       <term><literal>secure</literal></term>
       <listitem>
        <para>
         Currently unused.
        </para>
       </listitem>
      </varlistentry>
     </variablelist>
    </para>
   </refsect1>
   <refsect1 role="examples">
    &reftitle.examples;
    <para>
     <example>
      <title>PDO_DBLIB DSN examples</title>
      <para>
       The following examples show a PDO_DBLIB DSN for connecting to
       Microsoft SQL Server and Sybase databases:
       <programlisting><![CDATA[
mssql:host=localhost;dbname=testdb
sybase:host=localhost;dbname=testdb
dblib:host=localhost;dbname=testdb
]]>
       </programlisting>
      </para>
     </example>
    </para>
   </refsect1>
  </refentry>

 </reference>
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