(PECL id3:0.1-0.2)
id3_get_tag — Get all information stored in an ID3 tag
id3_get_tag() is used to get all information stored in the id3 tag of the specified file.
The path to the MP3 file
Instead of a filename you may also pass a valid stream resource
Allows you to specify the version of the tag as MP3 files may contain both, version 1.x and version 2.x tags
Since version 0.2 id3_get_tag() 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. ID3 v2.x tags can contain a lot more information about the MP3 file than ID3 v1.x tags.
Returns an associative array with various keys like: title, artist, ..
The key genre will contain an integer between 0 and 147. You may use id3_get_genre_name() to convert it to a human readable string.
Example#1 id3_get_tag() example
<?php
$tag = id3_get_tag( "path/to/example.mp3" );
print_r($tag);
?>
上例的输出类似于：
Array ( [title] => DN-38416 [artist] => Re:\Legion [album] => Reflections [year] => 2004 [genre] => 19 )
Example#2 id3_get_tag() example
<?php
$tag = id3_get_tag( "path/to/example2.mp3", ID3_V2_3 );
print_r($tag);
?>
上例的输出类似于：
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 )