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<refentry id="function.timezone-name-from-abbr">
 <refnamediv>
  <refname>timezone_name_from_abbr</refname>
  <refpurpose>Returns the timezone name from abbrevation</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>timezone_name_from_abbr</methodname>
   <methodparam><type>string</type><parameter>abbr</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>gmtOffset</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>isdst</parameter></methodparam>
  </methodsynopsis>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>abbr</parameter></term>
     <listitem>
      <para>
       Time zone abbreviation.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>gmtOffset</parameter></term>
     <listitem>
      <para>
       Offset from GMT in seconds. Defaults to -1 which means that first found
       time zone corresponding to <parameter>abbr</parameter> is returned.
       Otherwise exact offset is searched and only if not found then the first
       time zone with any offset is returned.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>isdst</parameter></term>
     <listitem>
      <para>
       Daylight saving time indicator. If <parameter>abbr</parameter> doesn't
       exist then the time zone is searched solely by
       <parameter>offset</parameter> and <parameter>isdst</parameter>.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns time zone name on success or &false; on failure.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>A <function>timezone_name_from_abbr</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
echo timezone_name_from_abbr("CET") . "\n";
echo timezone_name_from_abbr("", 3600, 0) . "\n";
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
Europe/Berlin
Europe/Paris
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>timezone_abbreviations_list</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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