### Install getID3() with Composer

Source: https://github.com/jamesheinrich/getid3/blob/master/README.md

Use this command to install the getID3() library in your project via Composer. Ensure Composer is installed first.

```bash
composer require james-heinrich/getid3
```

--------------------------------

### Interactive Program Notice for GPL Programs

Source: https://github.com/jamesheinrich/getid3/blob/master/licenses/license.gpl-10.txt

This is an example of a short notice that interactive programs should display when starting, informing users about the program's version, copyright, warranty, and redistribution terms under the GNU GPL.

```plaintext
Gnomovision version 69, Copyright (C) 19xx name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
```

--------------------------------

### Standard Copyright Notice for GPL Programs

Source: https://github.com/jamesheinrich/getid3/blob/master/licenses/license.gpl-10.txt

Include this notice at the start of each source file to convey the exclusion of warranty and specify licensing terms under the GNU GPL.

```plaintext
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy  <name of author>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option) 
any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA  02110-1301 USA
```

--------------------------------

### getID3() v0.1 Function Example

Source: https://github.com/jamesheinrich/getid3/blob/master/README.md

This is a historical example of the original getID3() function from v0.1, demonstrating its basic functionality for extracting ID3 tag information from the end of a file.

```php
function getID3($filename) { return unpack('a3TAG/a30title/a30artist/a30album/a4year/a28comment/c1track/c1genreid', substr(file_get_contents($filename), -128)); }
```