php-doc-en/reference/datetime/functions/timezone-identifiers-list.xml

<?xml version="1.0" encoding="iso-8859-1"?>
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<refentry xml:id="function.timezone-identifiers-list" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>timezone_identifiers_list</refname>
  <refpurpose>Returns numerically index array with all timezone identifiers</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>array</type><methodname>timezone_identifiers_list</methodname>
   <methodparam><type>int</type><parameter>what</parameter></methodparam>
   <methodparam><type>string</type><parameter>option</parameter></methodparam>
  </methodsynopsis>
  <methodsynopsis>
   <type>array</type><methodname>DateTimeZone::listIdentifiers</methodname>
   <methodparam><type>int</type><parameter>what</parameter></methodparam>
   <methodparam><type>string</type><parameter>country</parameter></methodparam>
  </methodsynopsis>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    &date.datetime.description;
    <varlistentry>
     <term><parameter>what</parameter></term>
     <listitem>
      <para>
       One of <classname>DateTimeZone</classname> class constants, defaults to
       <constant>DateTimeZone::ALL</constant>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>country</parameter></term>
     <listitem>
      <para>
       A two-letter ISO 3166-1 compatible country code.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

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

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>A <function>timezone_identifiers_list</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$timezone_identifiers = DateTimeZone::listIdentifiers();
for ($i=0; $i < 5; $i++) {
    echo "$timezone_identifiers[$i]\n";
}
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmera
]]>
    </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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