How can the OutputBuffer be configured to handle UTF-8 characters in PHP?

To handle UTF-8 characters in PHP's OutputBuffer, you can set the default charset to UTF-8 using the header() function. This ensures that the output is encoded correctly for UTF-8 characters.

// Set the default charset to UTF-8
header('Content-Type: text/html; charset=utf-8');

// Start output buffering
ob_start();