What are some recommended resources or libraries in PHP for working with rich text format (RTF) files?

When working with rich text format (RTF) files in PHP, one recommended library is PHPOffice/PHPWord. This library allows you to read, write, and manipulate RTF files easily. Additionally, PHPWord provides a simple and intuitive API for working with RTF files, making it a popular choice among developers.

// Include the PHPWord library
require_once 'path/to/vendor/autoload.php';

// Create a new PHPWord object
$phpWord = new \PhpOffice\PhpWord\PhpWord();

// Load an existing RTF file
$rtf = \PhpOffice\PhpWord\IOFactory::load('path/to/your/file.rtf');

// Get the content of the RTF file
$content = $rtf->getSections()[0]->getElements();

// Manipulate the content as needed

// Save the modified RTF file
$rtf->save('path/to/save/modified/file.rtf');