How can PHP developers ensure that the Euro symbol is properly stored and retrieved in a UTF-8 encoded database without changing the character set?

To ensure the Euro symbol is properly stored and retrieved in a UTF-8 encoded database without changing the character set, PHP developers can use the utf8_encode() and utf8_decode() functions to handle the encoding and decoding of the Euro symbol.

// Storing the Euro symbol in the database
$euro_symbol = utf8_encode("€");
// Save $euro_symbol in the database

// Retrieving the Euro symbol from the database
$euro_symbol_from_db = // Retrieve $euro_symbol from the database
$decoded_euro_symbol = utf8_decode($euro_symbol_from_db);
echo $decoded_euro_symbol; // Output: €