php-doc-en/reference/array/functions/current.xml

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<refentry id="function.current">
 <refnamediv>
  <refname>current</refname>
  <refpurpose>Return the current element in an array</refpurpose>
 </refnamediv>
 <refsect1>
  <title>Description</title>
  <methodsynopsis>
   <type>mixed</type><methodname>current</methodname>
   <methodparam><type>array</type><parameter role="reference">array</parameter></methodparam>
  </methodsynopsis>
  <para>
   Every array has an internal pointer to its "current" element,
   which is initialized to the first element inserted into the
   array.
  </para>
  <para>
   The <function>current</function> function simply returns the
   value of the array element that's currently being pointed to by the
   internal pointer.  It does not move the pointer in any way.  If the
   internal pointer points beyond the end of the elements list,
   <function>current</function> returns &false;.
  </para>

  &return.falseproblem;

  <note>
   <simpara>
    You won't be able to distinguish the end of an array from a
    <type>boolean</type> &false; element. To properly traverse an array
    which may contain &false; elements, see the <function>each</function>
    function.
   </simpara>
  </note>
  <para>
   <example>
    <title>Example use of <function>current</function> and friends</title>
    <programlisting role="php">
<![CDATA[
<?php
$transport = array('foot', 'bike', 'car', 'plane');
$mode = current($transport); // $mode = 'foot';
$mode = next($transport);    // $mode = 'bike';
$mode = current($transport); // $mode = 'bike';
$mode = prev($transport);    // $mode = 'foot';
$mode = end($transport);     // $mode = 'plane';
$mode = current($transport); // $mode = 'plane';
?>
]]>
    </programlisting>
   </example>
  </para>
  <para>
   See also <function>end</function>, <function>key</function>,
   <function>next</function>, <function>prev</function>,
   <function>reset</function>, and <function>each</function>.
  </para>
 </refsect1>
</refentry>

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