id3_get_version

Get version of an ID3 tag

&reftitle.description; `int` `id3_get_version` `string` `filename`

`id3_get_version` retrieves the version(s) of the ID3 tag(s) in the MP3 file.

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.

&reftitle.parameters;

`filename`

- The path to the MP3 file

  Instead of a filename you may also pass a valid stream resource

&reftitle.returnvalues;

Returns the version number of the ID3 tag of the 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`.

&reftitle.examples;

### `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";
    }
    ?>

&example.outputs.similar;

    Contains a 1.x tag
    Contains a 1.1 tag

&reftitle.seealso;

- `id3_set_tag`
- `id3_get_tag`
- `id3_remove_tag`