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<?xml version='1.0' encoding="utf-8"?>
<!-- $Revision: 297816 $ -->
<!-- Purpose: database.vendors -->
<!-- Membership: bundled, external, pecl -->
<reference xml:id="ref.pdo-pgsql" xmlns="http://docbook.org/ns/docbook">
<title>PostgreSQL Functions (PDO_PGSQL)</title>
<titleabbrev>PostgreSQL (PDO)</titleabbrev>
<partintro>
<section xml:id="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="pdo-pgsql.resources">
&reftitle.resources;
<para>
This extension defines a stream resource returned by
<function>PDO::pgsqlLOBOpen</function>.
</para>
</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><constant>host</constant></term>
<listitem>
<para>
The hostname on which the database server resides.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>port</constant></term>
<listitem>
<para>
The port on which the database server is running.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>dbname</constant></term>
<listitem>
<para>
The name of the database.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>user</constant></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><constant>password</constant></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>
</variablelist>
</para>
<note>
<para>
The <literal>bytea</literal> fields are returned as streams.
</para>
</note>
</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>
</example>
</para>
</refsect1>
</refentry>
&reference.pdo-pgsql.entities.functions;
</reference>
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