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  <refentry id="function.readfile">
   <refnamediv>
    <refname>readfile</refname>
    <refpurpose>Outputs a file</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>int</type><methodname>readfile</methodname>
      <methodparam><type>string</type><parameter>filename</parameter></methodparam>
      <methodparam choice="opt"><type>bool</type><parameter>use_include_path</parameter></methodparam>
      <methodparam choice="opt"><type>resource</type><parameter>context</parameter></methodparam>
     </methodsynopsis>
    <para>
     Reads a file and writes it to the output buffer.
    </para>
    <para>
     Returns the number of bytes read from the file. If an error
     occurs, &false; is returned and unless the function was called as
     @<function>readfile</function>, an error message is printed.
    </para>
    &tip.fopen-wrapper;
    <para>
     You can use the optional second parameter and set it to &true;, if
     you want to search for the file in the <link
     linkend="ini.include-path">include_path</link>, too.
    </para>
    <para>
     See also <function>fpassthru</function>,
     <function>file</function>, <function>fopen</function>,
     <function>include</function>, <function>require</function>,
     <function>virtual</function>, <function>file_get_contents</function>,
     and <xref linkend="wrappers"/>.
    </para>
   </refsect1>
  </refentry>

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