reference/datetime/functions/timezone-version-get.xml
b7ac6fa547cef108d56729fa322677eec4882285
b7ac6fa547cef108d56729fa322677eec4882285
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<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.timezone-version-get" xmlns="http://docbook.org/ns/docbook">
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<refentry xml:id="function.timezone-version-get" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<refnamediv>
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<refname>timezone_version_get</refname>
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<refpurpose>
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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&no.function.parameters;
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns a <type>string</type>.
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Returns a <type>string</type> in the format
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<literal>YYYY.increment</literal>, such as <literal>2022.2</literal>.
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</para>
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<para>
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If you have a timezone database version that is old (for example, it
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doesn't show the current year), then you can update the timezone information
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by either upgrading your PHP version, or installing the <link
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xlink:href="&url.pecl.package;timezonedb">timezonedb</link> PECL package.
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</para>
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<para>
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Some Linux distributions patch PHP's date/time support to use an
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alternative source for timezone information. In which case this function
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will return <literal>0.system</literal>. You are encouraged to install the
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<link xlink:href="&url.pecl.package;timezonedb">timezonedb</link> PECL
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package in that case as well.
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</para>
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</refsect1>
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&example.outputs.similar;
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<screen>
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<![CDATA[
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2009.7
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2022.2
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]]>
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</screen>
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</example>
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