What are the potential pitfalls of relying on the PEAR library for Spreadsheet Excel Writer in PHP?

Potential pitfalls of relying on the PEAR library for Spreadsheet Excel Writer in PHP include compatibility issues with newer PHP versions, lack of support and updates, and potential security vulnerabilities. To mitigate these risks, consider using alternative libraries such as PhpSpreadsheet which is actively maintained and provides more features and support. 

// Example of using PhpSpreadsheet library instead of PEAR Spreadsheet Excel Writer

require 'vendor/autoload.php'; // Include PhpSpreadsheet library

use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;

// Create a new Spreadsheet object
$spreadsheet = new Spreadsheet();

// Add data to the spreadsheet
$sheet = $spreadsheet->getActiveSheet();
$sheet->setCellValue('A1', 'Hello World!');

// Save the spreadsheet as an Excel file
$writer = new Xlsx($spreadsheet);
$writer->save('hello_world.xlsx');

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