mirror of
https://github.com/sigmasternchen/php-doc-en
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2dfaaa96a9
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@317827 c90b9560-bf6c-de11-be94-00142212c4b1
113 lines
2.5 KiB
XML
113 lines
2.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<chapter xml:id="rrd.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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&reftitle.examples;
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<section xml:id="rrd.examples-procedural">
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<title>Procedural PECL/rrd example</title>
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<para>
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<example>
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<title>Procedural usage of rrd</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$rrdFile = dirname(__FILE__) . "/speed.rrd";
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//create rrd file
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rrd_create($rrdFile,
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array(
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"--start",920804400,
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"DS:speed:COUNTER:600:U:U",
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"RRA:AVERAGE:0.5:1:24",
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"RRA:AVERAGE:0.5:6:10"
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)
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);
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//update rrd file
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rrd_update($rrdFile,
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array(
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"920804700:12345",
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"920805000:12357"
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)
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);
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//graph output
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rrd_graph(dirname(__FILE__) . "/speed.png",
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array(
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"--start", "920804400",
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"--end", "920808000",
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"--vertical-label", "m/s",
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"DEF:myspeed=$rrdFile:speed:AVERAGE",
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"CDEF:realspeed=myspeed,1000,*",
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"LINE2:realspeed#FF0000"
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)
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);
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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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</section>
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<section xml:id="rrd.examples-oop">
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<title>OOP PECL/rrd example</title>
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<para>
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<example>
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<title>OO usage of rrd</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$rrdFile = dirname(__FILE__) . "/speed.rrd";
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$outputPngFile = dirname(__FILE__) . "/speed.png";
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$creator = new RRDCreator($rrdFile, "now -10d", 500);
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$creator->addDataSource("speed:COUNTER:600:U:U");
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$creator->addArchive("AVERAGE:0.5:1:24");
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$creator->addArchive("AVERAGE:0.5:6:10");
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$creator->save();
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$updater = new RRDUpdater($rrdFile);
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$updater->update(array("speed" => "12345"), "920804700");
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$updater->update(array("speed" => "12357"), "920805000");
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$graphObj = new RRDGraph($outputPngFile);
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$graphObj->setOptions(
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array(
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"--start" => "920804400",
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"--end" => 920808000,
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"--vertical-label" => "m/s",
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"DEF:myspeed=$rrdFile:speed:AVERAGE",
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"CDEF:realspeed=myspeed,1000,*",
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"LINE2:realspeed#FF0000"
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)
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);
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$graphObj->save();
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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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</section>
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</chapter>
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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:"~/.phpdoc/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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