In what ways can PHP developers optimize their code to handle special characters seamlessly, especially when dealing with UTF-8 encoding?

PHP developers can optimize their code to handle special characters seamlessly by ensuring that all strings are properly encoded in UTF-8, using functions like utf8_encode() and utf8_decode() when necessary. Additionally, developers should use htmlspecialchars() or htmlentities() functions to escape special characters when outputting data to prevent XSS attacks. 

// Ensure UTF-8 encoding
mb_internal_encoding("UTF-8");

// Convert string to UTF-8
$string = "Special characters: ñ, é, ü";
$utf8_string = mb_convert_encoding($string, "UTF-8", "auto");

// Output escaped string
echo htmlspecialchars($utf8_string, ENT_QUOTES, "UTF-8");

Keywords

UTF-8 encoding special characters PHP developers optimization code handling

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