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<!-- $Revision: 1.2 $ -->
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  <refentry id="function.is-readable">
   <refnamediv>
    <refname>is_readable</refname>
    <refpurpose>Tells whether the filename is readable</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>bool</type><methodname>is_readable</methodname>
      <methodparam><type>string</type><parameter>filename</parameter></methodparam>
     </methodsynopsis>
    <para>
     Returns &true; if the filename exists and is readable.
    </para>
    <para>
     Keep in mind that PHP may be accessing the file as the user
     id that the web server runs as (often 'nobody'). Safe mode
     limitations are not taken into account.
    </para>
    <para>
     The results of this function are cached. See
     <function>clearstatcache</function> for more details.
    </para>
    <simpara>
     This function will not work on <link
     linkend="features.remote-files">remote files</link>; the file to
     be examined must be accessible via the server's filesystem.
    </simpara>
    <para>
     See also <function>is_writable</function>.
    </para>
   </refsect1>
  </refentry>

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