What are some best practices for handling HTML entities in PHP to ensure proper display in browsers?

When working with HTML entities in PHP, it is important to properly encode and decode them to ensure they are displayed correctly in browsers. To handle HTML entities in PHP, you can use the `htmlspecialchars()` function to encode special characters like <, >, &, etc., and `html_entity_decode()` function to decode them back to their original form.

// Encoding HTML entities
$encoded_string = htmlspecialchars($original_string, ENT_QUOTES, 'UTF-8');

// Decoding HTML entities
$decoded_string = html_entity_decode($encoded_string, ENT_QUOTES, 'UTF-8');