Функция PHP для преобразования Unicode в специальные символы?

Есть ли функция php для обработки кодировок ниже?

.replaceAll("\u00c3\u0080", "À") .replaceAll("\u00c3\u0081", "Á") .replaceAll("\u00c3\u0082", "Â") .replaceAll("\u00c3\u0083", "Ã") .replaceAll("\u00c3\u0084", "Ä") .replaceAll("\u00c3\u0085", "Å") .replaceAll("\u00c3\u0086", "Æ") .replaceAll("\u00c3\u00a0", "à") .replaceAll("\u00c3\u00a1", "á") .replaceAll("\u00c3\u00a2", "â") .replaceAll("\u00c3\u00a3", "ã") .replaceAll("\u00c3\u00a4", "ä") .replaceAll("\u00c3\u00a5", "å") .replaceAll("\u00c3\u00a6", "æ") .replaceAll("\u00c3\u0087", "Ç") .replaceAll("\u00c3\u00a7", "ç") .replaceAll("\u00c3\u0090", "Ð") .replaceAll("\u00c3\u00b0", "ð") .replaceAll("\u00c3\u0088", "È") .replaceAll("\u00c3\u0089", "É") .replaceAll("\u00c3\u008a", "Ê") .replaceAll("\u00c3\u008b", "Ë") .replaceAll("\u00c3\u00a8", "è") .replaceAll("\u00c3\u00a9", "é") .replaceAll("\u00c3\u00aa", "ê") .replaceAll("\u00c3\u00ab", "ë") .replaceAll("\u00c3\u008c", "Ì") .replaceAll("\u00c3\u008d", "Í") .replaceAll("\u00c3\u008e", "Î") .replaceAll("\u00c3\u008f", "Ï") .replaceAll("\u00c3\u00ac", "ì") .replaceAll("\u00c3\u00ad", "í") .replaceAll("\u00c3\u00ae", "î") .replaceAll("\u00c3\u00af", "ï") .replaceAll("\u00c3\u0091", "Ñ") .replaceAll("\u00c3\u00b1", "ñ") .replaceAll("\u00c3\u0092", "Ò") .replaceAll("\u00c3\u0093", "Ó") .replaceAll("\u00c3\u0094", "Ô") .replaceAll("\u00c3\u0095", "Õ") .replaceAll("\u00c3\u0096", "Ö") .replaceAll("\u00c3\u0098", "Ø") .replaceAll("\u00c5\u0092", "Œ") .replaceAll("\u00c3\u00b2", "ò") .replaceAll("\u00c3\u00b3", "ó") .replaceAll("\u00c3\u00b4", "ô") .replaceAll("\u00c3\u00b5", "õ") .replaceAll("\u00c3\u00b6", "ö") .replaceAll("\u00c3\u00b8", "ø") .replaceAll("\u00c5\u0093", "œ") .replaceAll("\u00c3\u0099", "Ù") .replaceAll("\u00c3\u009a", "Ú") .replaceAll("\u00c3\u009b", "Û") .replaceAll("\u00c3\u009c", "Ü") .replaceAll("\u00c3\u00b9", "ù") .replaceAll("\u00c3\u00ba", "ú") .replaceAll("\u00c3\u00bb", "û") .replaceAll("\u00c3\u00bc", "ü") .replaceAll("\u00c3\u009d", "Ý") .replaceAll("\u00c5\u00b8", "Ÿ") .replaceAll("\u00c3\u00bd", "ý") .replaceAll("\u00c3\u00bf", "ÿ"); 

• strlen () и UTF-8
• Символ Unicode в строке PHP
• как конвертировать из Unicode в UTF-8 в PHP?
• preg_match unicode parsing
• Преобразование однобайтовой строки в строку с двумя байтами

 function jsonRemoveUnicodeSequences($struct) { return preg_replace("/\\\\u([a-f0-9]{4})/e", "iconv('UCS-4LE','UTF-8',pack('V', hexdec('U$1')))", json_encode($struct)); }