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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.2 $ -->
<refentry id="function.id3-get-tag">
<refnamediv>
<refname>id3_get_tag</refname>
<refpurpose>Get all information stored in an ID3 tag</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>array</type><methodname>id3_get_tag</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>version</parameter></methodparam>
</methodsynopsis>
<para>
<function>id3_get_tag</function> is used to get all information stored
in the id3 tag of the specified file.
</para>
<note>
<simpara>Instead of a filename you may also pass a valid stream resource.</simpara>
</note>
<para>
The optional <parameter>version</parameter> parameter allows you to
specify the version of the tag as MP3 files may contain both, version 1.x and
version 2.x tags.
</para>
<para>
<example>
<title><function>id3_get_tag</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$tag = id3_get_tag( "path/to/example.mp3" );
print_r($tag);
?>
]]>
</programlisting>
<para>
This will output something like:
</para>
<screen>
<![CDATA[
Array
(
[title] => DN-38416
[artist] => Re:\Legion
[album] => Reflections
[year] => 2004
[genre] => 19
)
]]>
</screen>
</example>
</para>
<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 Gtze
[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>.
</para>
</refsect1>
</refentry>
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