php-doc-en/reference/memcache/functions/memcache-addserver.xml

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<refentry id="function.Memcache-addServer">
 <refnamediv>
  <refname>Memcache::addServer</refname>
  <refpurpose>Add a memcached server to connection pool</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>Memcache::addServer</methodname>
   <methodparam><type>string</type><parameter>host</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>port</parameter></methodparam>
   <methodparam choice="opt"><type>bool</type><parameter>persistent</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>weight</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>timeout</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>retry_interval</parameter></methodparam>
  </methodsynopsis>
  
  <para>
   <function>Memcache::addServer</function> adds a server to the connection 
   pool. The actual connection is established on first use.
   The connection, which was opened using
   <function>Memcache::addServer</function> will be automatically closed at the
   end of script execution. Also you can close it with
   <function>Memcache::close</function>.
   You can also use the <function>memcache_add_server</function> function.
  </para>

  <note>
   <para>
    This function has been added to Memcache version 2.0.0.
   </para>
  </note>

 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>host</parameter></term>
     <listitem>
      <para>
       Point to the host where memcached is listening for connections.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>port</parameter></term>
     <listitem>
      <para>
       Point to the port where memcached is listening for connections.
       This parameter is optional and its default value is 11211.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>persistent</parameter></term>
     <listitem>
      <para>
       Controls the use of a persistent connection. Default to &true;.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>weight</parameter></term>
     <listitem>
      <para>
       Number of buckets to create for this server which in turn control its
       probability of it being selected. The probability is relative to the
       total weight of all servers.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>timeout</parameter></term>
     <listitem>
      <para>
       Value in seconds which will be used for connecting to the daemon. Think
       twice before changing the default value of 1 second - you can loose all
       the advantages of caching if you connection is too slow.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>retry_interval</parameter></term>
     <listitem>
      <para>
       Controls how often a failed server will be retried, the default value
       is 15 seconds. Neither this nor the <parameter>persistent</parameter>
       parameter has any effect when this extension is loaded dynamically
       via <function>dl</function>.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>Memcache::addServer</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php

/* OO API */

$memcache = new Memcache;
$memcache->addServer('memcache_host', 11211);
$memcache->addServer('memcache_host2', 11211);

/* procedural API */

$memcache_obj = memcache_connect('memcache_host', 11211);
memcache_add_server($memcache_obj, 'memcache_host2', 11211);

?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>Memcache::connect</function></member>
    <member><function>Memcache::pconnect</function></member>
    <member><function>Memcache::close</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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