How can PHP developers efficiently switch between character encodings in their code using text editors like Notepad++?

PHP developers can efficiently switch between character encodings in their code using text editors like Notepad++ by utilizing the "Encoding" menu option to change the character encoding of the file. This allows developers to easily switch between encodings such as UTF-8, ISO-8859-1, and others to ensure proper handling of special characters and symbols in their PHP code.

// Example PHP code snippet demonstrating how to specify character encoding in a PHP file
<?php
header('Content-Type: text/html; charset=ISO-8859-1');
echo "Hello, world!";
?>