added example for ID3 v2

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@174905 c90b9560-bf6c-de11-be94-00142212c4b1

reference/id3/functions/id3-get-tag.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.1 $ -->
+<!-- $Revision: 1.2 $ -->
   <refentry id="function.id3-get-tag">
    <refnamediv>
     <refname>id3_get_tag</refname>
@@ -52,16 +52,50 @@ Array
       </screen>
      </example>
     </para>
-    <note>
-     <simpara>
-      Currently <function>id3_get_tag</function> only supports
-      version 1.0 and 1.1.      
-     </simpara>
-    </note>
     <para>
       The key <literal>genre</literal> will contain an integer between 0 and 147. You may
       use <function>id3_get_genre_name</function> to convert it to a human readable string.
     </para>
+    <para>
+     Since version 0.2 <function>id3_get_tag</function> also supports ID3 tags of version 2.2, 2.3 and 2.4.
+     To extract information from these tags, pass one of the constants ID3_V2_2, ID3_V2_3 or ID3_V2_4 as the
+     second parameter.
+    </para>
+    <para>
+     <example>
+      <title><function>id3_get_tag</function> example</title>
+      <programlisting role="php">
+<![CDATA[
+<?php
+$tag = id3_get_tag( "path/to/example2.mp3", ID3_V2_3 );
+print_r($tag);
+?>
+]]>
+      </programlisting>
+      <para>
+       This will output something like:
+      </para>
+      <screen>
+<![CDATA[
+Array
+(
+    [copyright] => Dirty Mac
+    [originalArtist] => Dirty Mac
+    [composer] => Marcus Götze
+    [artist] => Dirty Mac
+    [title] => Little Big Man
+    [album] => Demo-Tape
+    [track] => 5/12
+    [genre] => (17)Rock
+    [year] => 2001
+)
+]]>
+      </screen>
+     </example>
+    </para>
+    <para>
+     ID3 v2.x tags can contain a lot more information about the MP3 file than ID3 v1.x tags.
+    </para>
     <para>
      See also <function>id3_set_tag</function>,
      <function>id3_remove_tag</function> and <function>id3_get_version</function>.