php-doc-en/reference/amqp/amqpexchange/declare.xml
2011-08-27 17:55:51 +00:00

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<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="amqpexchange.declare" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>AMQPExchange::declare</refname>
<refpurpose>Declare a new exchange on the broker.</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>bool</type><methodname>AMQPExchange::declare</methodname>
<methodparam choice="opt"><type>string</type><parameter>exchange_name</parameter><initializer>""</initializer></methodparam>
<methodparam choice="opt"><type>string</type><parameter>exchange_type</parameter><initializer><constant>AMQP_EX_TYPE_DIRECT</constant></initializer></methodparam>
<methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer>0</initializer></methodparam>
</methodsynopsis>
<para>
Declare a new exchange on the broker with the given information. If an exchange by that name already exists and the
<parameter>exchange_type</parameter> and/or <parameter>flags</parameter> are specified, the exchange settings will
be updated.
</para>
<para>
If no <parameter>exchange_type</parameter> is specified and the exchange does not exist, the exchange type will default to "direct".
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>exchange_name</parameter></term>
<listitem>
<para>
The name of the exchange.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>exchange_type</parameter></term>
<listitem>
<para>
The type of the exchange. Can be any of <constant>AMQP_EX_TYPE_DIRECT</constant>, <constant>AMQP_EX_TYPE_FANOUT</constant>, <constant>AMQP_EX_TYPE_TOPIC</constant> or <constant>AMQP_EX_TYPE_HEADER</constant>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>flags</parameter></term>
<listitem>
<para>
A bitmask of any of the flags: <constant>AMQP_PASSIVE</constant>, <constant>AMQP_DURABLE</constant>, <constant>AMQP_AUTODELETE</constant>.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
Throws <classname>AMQPExchangeException</classname> on failure.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><methodname>AMQPExchange::declare</methodname> example</title>
<programlisting role="php">
<![CDATA[
<?php
/* Create a new connection */
$cnn = new AMQPConnection();
$cnn->connect();
$ex = new AMQPExchange($cnn);
$ex->declare('new_topic_exchange', AMQP_EX_TYPE_DIRECT, AMQP_DURABLE | AMQP_AUTODELETE);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
</refentry>
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