mirror of
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54 lines
1.9 KiB
XML
54 lines
1.9 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision$ -->
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<sect1 id="variable.cache.lifetime">
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<title>$cache_lifetime</title>
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<para>
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This is the length of time in seconds that a template cache is valid.
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Once this time has expired, the cache will be regenerated. $caching must
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be set to "true" for $cache_lifetime to have any purpose. A value of -1
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will force the cache to never expire. A value of 0 will cause the cache
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to always regenerate (good for testing only, to disable caching a more
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efficient method is to set <link
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linkend="variable.caching">$caching</link> = false.)
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</para>
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<para>
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If <link linkend="variable.force.compile">$force_compile</link> is
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enabled, the cache files will be regenerated every time, effectively
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disabling caching. You can clear all the cache files with the <link
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linkend="api.clear.all.cache">clear_all_cache()</link> function, or
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individual cache files (or groups) with the <link
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linkend="api.clear.cache">clear_cache()</link> function.
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</para>
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<note>
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<title>Technical Note</title>
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<para>
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If you want to give certain templates their own cache lifetime, you could
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do this by setting <link linkend="variable.caching">$caching</link> = 2,
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then set $cache_lifetime to a unique value just before calling
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<link linkend="api.display">display()</link>
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or <link linkend="api.fetch">fetch()</link>.
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</para>
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</note>
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</sect1>
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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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