timezone-version-get.xml

<?xml version="1.0" encoding="utf-8"?>
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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">
 <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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