php-doc-en/reference/xdiff/functions/xdiff-file-diff-binary.xml

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<refentry id="function.xdiff-file-diff-binary">
 <refnamediv>
  <refname>xdiff_file_diff_binary</refname>
  <refpurpose>Make binary diff of two files</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>xdiff_file_diff_binary</methodname>
   <methodparam><type>string</type><parameter>file1</parameter></methodparam>
   <methodparam><type>string</type><parameter>file2</parameter></methodparam>
   <methodparam><type>string</type><parameter>dest</parameter></methodparam>
  </methodsynopsis>
  <para>
   Makes a binary diff of two files and stores the result in a file.
   This function works with both text and binary files. 
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>file1</parameter></term>
     <listitem>
      <para>
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>file2</parameter></term>
     <listitem>
      <para>
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>dest</parameter></term>
     <listitem>
      <para>
       Path of the resulting file. Resulting file is in binary format.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>xdiff_file_diff_binary</function> example</title>
    <para>
     The following code makes binary diff of two archives.
    </para>
    <programlisting role="php">
<![CDATA[
<?php
$old_version = 'my_script_1.0.tgz';
$new_version = 'my_script_1.1.tgz';

xdiff_file_diff_binary($old_version, $new_version, 'my_script.bdiff');
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  <note>
   <para>
    Both files will be loaded into memory so ensure that your memory_limit is
    set high enough.
   </para>
  </note>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>xdiff_string_diff_binary</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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