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https://github.com/sigmasternchen/php-doc-en
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93 lines
2.6 KiB
XML
93 lines
2.6 KiB
XML
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.1 $ -->
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<refentry id="function.Memcache-increment">
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<refnamediv>
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<refname>Memcache::increment</refname>
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<refpurpose>Increment item's value</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>int</type><methodname>Memcache::increment</methodname>
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<methodparam><type>string</type><parameter>key</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>value</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>Memcache::increment</function> increments value of the item on
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the specified <parameter>value</parameter>. If item with key
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<parameter>key</parameter> was not numeric and cannot be converted to
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number, it will change it's value to <parameter>value</parameter>.
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</para>
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<para>
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Parameter <parameter>value</parameter> is optional. It's default value is
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1.
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</para>
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<note>
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<para>
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Do not use <function>Memcache::increment</function> with item, which was
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stored compressed, because consequent call to
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<function>Memcache::get</function> will fail.
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</para>
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</note>
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<para>
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Also you can use <function>memcache_increment</function> function.
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See example below.
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</para>
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<example>
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<title><function>Memcache::increment</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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/* procedural API */
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$memcache_obj = memcache_connect('memcache_host', 11211);
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/* increment counter by 2 */
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$current_value = memcache_increment($memcache_obj, 'counter', 2);
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/* OO API */
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$memcache_obj = new Memcache;
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$memcache_obj->connect('memcache_host', 11211);
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/* increment counter by 3 */
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$current_value = $memcache_obj->increment('counter', 3);
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?>
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]]>
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</programlisting>
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</example>
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<para>
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<function>Memcache::increment</function> returns new item's value on
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success or &false; on failure.
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</para>
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<para>
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<function>Memcache::increment</function> <emphasis>does not</emphasis>
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create an item if it didn't exist.
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</para>
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<para>
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See also
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<function>Memcache::decrement</function>,
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<function>Memcache::replace</function>.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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