id3_get_version
    (no version information, might be only in CVS)
id3_get_version -- Get version of an ID3 tag
Description
int 
id3_get_version ( string filename)
     id3_get_version() retrieves the version(s) of the ID3 tag(s) in
     the MP3 file. As a tag can contain ID3 v1.x and v2.x tags, the return value of this
     function should be bitwise compared with the predefined constants ID3_V1_0,
     ID3_V1_1 and  ID3_V2.
    
Note: Instead of a filename you may also pass a valid stream resource.
     
Example 1. id3_get_version() example 
<?php $version = id3_get_version( "path/to/example.mp3" ); if ($version & ID3_V1_0) {     echo "Contains a 1.x tag\n"; } if ($version & ID3_V1_1) {     echo "Contains a 1.1 tag\n"; } if ($version & ID3_V2) {     echo "Contains a 2.x tag\n"; } ?>
 |  
 
       This will output something like:
       Contains a 1.x tag
Contains a 1.1 tag  |  
  | 
    
      If a file contains an ID3 v1.1 tag, it always contains
      a 1.0 tag, as version 1.1 is just an extension of 1.0.
    
     See also id3_get_tag(), id3_set_tag() and
     id3_remove_tag().