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<!-- $Revision: 1.8 $ -->
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<refentry id="function.filesize">
 <refnamediv>
  <refname>filesize</refname>
  <refpurpose>Gets file size</refpurpose>
 </refnamediv>
 <refsect1>
  <title>Description</title>
  <methodsynopsis>
   <type>int</type><methodname>filesize</methodname>
   <methodparam><type>string</type><parameter>filename</parameter></methodparam>
  </methodsynopsis>
  <para>
   Returns the size of the file in bytes, or &false; (and generates an error
   of level <constant>E_WARNING</constant>) in case of an error.
  </para>
  <note>
   <simpara>
    Because PHP's integer type is signed and many platforms use 32bit integers,
    <function>filesize</function> may return unexpected results for files which
    are larger than 2GB.  For files between 2GB and 4GB in size this can usually
    be overcome by using <literal>sprintf("%u", filesize($file))</literal>.
   </simpara>
  </note>

  &note.clearstatcache;

  &tip.fopen-wrapper.stat;

  <para>
   <example>
    <title><function>filesize</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php

// outputs e.g.  somefile.txt: 1024 bytes

$filename = 'somefile.txt';
echo $filename . ': ' . filesize($filename) . ' bytes';

?>
]]>
    </programlisting>
   </example>
  </para>
  <simpara>
   See also <function>file_exists</function>
  </simpara>
 </refsect1>
</refentry>

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