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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<reference xml:id="ref.pdo-pgsql" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<?phpdoc extension-membership="bundledexternal" ?>
<title>PostgreSQL PDO Driver (PDO_PGSQL)</title>
<titleabbrev>PostgreSQL PDO Driver</titleabbrev>
<partintro>
<section xml:id="ref.pdo-pgsql.intro">
&reftitle.intro;
<para>
PDO_PGSQL is a driver that implements the <link linkend="intro.pdo">PHP
Data Objects (PDO) interface</link>
to enable access from PHP to PostgreSQL databases.
</para>
</section>
<section xml:id="ref.pdo-pgsql.resources">
&reftitle.resources;
<para>
This extension defines a stream resource returned by
<function>PDO::pgsqlLOBOpen</function>.
</para>
</section>
&reference.pdo-pgsql.configure;
&reference.pdo-pgsql.constants;
<section xml:id="ref.pdo-pgsql.general-notes">
<title>General notes</title>
<note>
<para>
<literal>bytea</literal> fields are returned as streams.
</para>
</note>
</section>
</partintro>
<refentry xml:id="ref.pdo-pgsql.connection">
<refnamediv>
<refname>PDO_PGSQL DSN</refname>
<refpurpose>Connecting to PostgreSQL databases</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<para>
The PDO_PGSQL Data Source Name (DSN) is composed of the following elements, delimited by spaces or semicolons:
<variablelist>
<varlistentry>
<term>DSN prefix</term>
<listitem>
<para>
The DSN prefix is <userinput>pgsql:</userinput>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>host</literal></term>
<listitem>
<para>
The hostname on which the database server resides.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>port</literal></term>
<listitem>
<para>
The port on which the database server is running.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>dbname</literal></term>
<listitem>
<para>
The name of the database.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>user</literal></term>
<listitem>
<para>
The name of the user for the connection. If you specify the user name
in the DSN, PDO ignores the value of the user name argument in the
PDO constructor.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>password</literal></term>
<listitem>
<para>
The password of the user for the connection. If you specify the
password in the DSN, PDO ignores the value of the password argument
in the PDO constructor.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>sslmode</literal></term>
<listitem>
<para>
The SSL mode. Supported values and their meaning are listed in the
<link xlink:href="&url.pgsql.manual;">PostgreSQL Documentation</link>.
</para>
</listitem>
</varlistentry>
</variablelist>
<note>
<simpara>
All semicolons in the DSN string are replaced by spaces, because PostgreSQL
expects this format. This implies that semicolons in any of the components
(e.g. <literal>password</literal> or <literal>dbname</literal>) are not
supported.
</simpara>
</note>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>PDO_PGSQL DSN examples</title>
<para>
The following example shows a PDO_PGSQL DSN for connecting to
a PostgreSQL database:
<programlisting>
<![CDATA[
pgsql:host=localhost;port=5432;dbname=testdb;user=bruce;password=mypass
]]>
</programlisting>
</para>
<para>
The following example shows a PDO_PGSQL DSN for connecting to
a PostgreSQL database via unix socket <filename>/tmp/.s.PGSQL.5432</filename>:
<programlisting>
<![CDATA[
pgsql:host=/tmp;port=5432;dbname=testdb;user=bruce;password=mypass
]]>
</programlisting>
</para>
</example>
</para>
</refsect1>
</refentry>
&reference.pdo-pgsql.entities.pdo-overloaded;
</reference>
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