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<!-- $Revision: 1.4 $ -->
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  <refentry id="function.openssl-pkey-export-to-file">
   <refnamediv>
    <refname>openssl_pkey_export_to_file</refname>
    <refpurpose>Gets an exportable representation of a key into a file </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>bool</type><methodname>openssl_pkey_export_to_file</methodname>
      <methodparam><type>mixed</type><parameter>key</parameter></methodparam>
      <methodparam><type>string</type><parameter>outfilename</parameter></methodparam>
      <methodparam choice="opt"><type>string</type><parameter>passphrase</parameter></methodparam>
      <methodparam choice="opt"><type>array</type><parameter>configargs</parameter></methodparam>
     </methodsynopsis>
    <para>
     <function>openssl_pkey_export_to_file</function> saves an ascii-armoured
     (PEM encoded) rendition of <parameter>key</parameter> into the file named
     by <parameter>outfilename</parameter>.  The key can be optionally
     protected by a <parameter>passphrase</parameter>.
     <parameter>configargs</parameter> can be used to fine-tune the export
     process by specifying and/or overriding options for the openssl
     configuration file.  See <function>openssl_csr_new</function> for more
     information about <parameter>configargs</parameter>.
     &return.success;
    </para>
    &reference.openssl.note-openssl-cnf;
   </refsect1>
  </refentry>

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