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