php-doc-en/reference/ftp/functions/ftp-cdup.xml

<?xml version="1.0" encoding="iso-8859-1"?>
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  <refentry id="function.ftp-cdup">
   <refnamediv>
    <refname>ftp_cdup</refname>
    <refpurpose>Changes to the parent directory</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>bool</type><methodname>ftp_cdup</methodname>
      <methodparam><type>resource</type><parameter>ftp_stream</parameter></methodparam>
     </methodsynopsis>
    <para> 
     Changes to the parent directory.
    </para>
    <para>
     <example>
      <title><function>ftp_cdup</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php
// set up basic connection
$conn_id = ftp_connect($ftp_server);

// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);

if (ftp_cdup($conn_id)) {
 echo "cdup successful\n";
}else{
 echo "cdup not successful\n";
}

ftp_close($conn_id);
?>
]]>
      </programlisting>
     </example>
    </para>
    <para>
     &return.success;
    </para>
    <para>
     See also <function>ftp_chdir</function>.
    </para>
   </refsect1>
  </refentry>

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