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<?php
 // code source:  https://github.com/devgeniem/wp-sanitize-accented-uploads/blob/master/plugin.php#L152
 // table source: http://www.i18nqa.com/debug/utf8-debug.html
 
 return [
 // 3 char errors
 'â??' => '?',
 'â??' => '?',
 'â?¦' => '?',
 'â?¡' => '?',
 'â?°' => '?',
 'â?¹' => '?',
 'â??' => '?',
 'â??' => '?',
 'â??' => '?',
 'â?¢' => '?',
 'â??' => '?',
 'â??' => '?',
 'â?¢' => '?',
 'â?º' => '?',
 'â?¬' => '?',
 // 2 char errors
 "\xc2\x80" => "\xe2\x82\xac", // EURO SIGN
 "\xc2\x82" => "\xe2\x80\x9a", // SINGLE LOW-9 QUOTATION MARK
 "\xc2\x83" => "\xc6\x92", // LATIN SMALL LETTER F WITH HOOK
 "\xc2\x84" => "\xe2\x80\x9e", // DOUBLE LOW-9 QUOTATION MARK
 "\xc2\x85" => "\xe2\x80\xa6", // HORIZONTAL ELLIPSIS
 "\xc2\x86" => "\xe2\x80\xa0", // DAGGER
 "\xc2\x87" => "\xe2\x80\xa1", // DOUBLE DAGGER
 "\xc2\x88" => "\xcb\x86", // MODIFIER LETTER CIRCUMFLEX ACCENT
 "\xc2\x89" => "\xe2\x80\xb0", // PER MILLE SIGN
 "\xc2\x8a" => "\xc5\xa0", // LATIN CAPITAL LETTER S WITH CARON
 "\xc2\x8b" => "\xe2\x80\xb9", // SINGLE LEFT-POINTING ANGLE QUOTE
 "\xc2\x8c" => "\xc5\x92", // LATIN CAPITAL LIGATURE OE
 "\xc2\x8e" => "\xc5\xbd", // LATIN CAPITAL LETTER Z WITH CARON
 "\xc2\x91" => "\xe2\x80\x98", // LEFT SINGLE QUOTATION MARK
 "\xc2\x92" => "\xe2\x80\x99", // RIGHT SINGLE QUOTATION MARK
 "\xc2\x93" => "\xe2\x80\x9c", // LEFT DOUBLE QUOTATION MARK
 "\xc2\x94" => "\xe2\x80\x9d", // RIGHT DOUBLE QUOTATION MARK
 "\xc2\x95" => "\xe2\x80\xa2", // BULLET
 "\xc2\x96" => "\xe2\x80\x93", // EN DASH
 "\xc2\x97" => "\xe2\x80\x94", // EM DASH
 "\xc2\x98" => "\xcb\x9c", // SMALL TILDE
 'Ã?'       => 'Â',
 'Æ?'       => '?',
 'Ã?'       => 'Ã',
 'Ã?'       => 'Ä',
 'Ã?'       => 'Å',
 //'â?'       => '?', // duplicate key
 'Ã?' => 'Æ',
 'Ã?' => 'Ç',
 'Ë?' => '?',
 'Ã?' => 'È',
 'Ã?' => 'É',
 'Ã?' => 'Ê',
 'Ã?' => 'Ë',
 'Å?' => '?',
 'Ã?' => 'Ì',
 'Ž' => '?',
 'Ã?' => 'Î',
 'Ã?' => 'Ñ',
 'Ã?' => 'Ò',
 'Ã?' => 'Ó',
 'â?' => '?',
 'Ã?' => 'Ô',
 'Ã?' => 'Õ',
 'Ã?' => 'Ö',
 'Ã?' => '×',
 'Ë?' => '?',
 'Ã?' => 'Ø',
 'Ã?' => 'Ù',
 'Å¡' => '?',
 'Ã?' => 'Ú',
 'Ã?' => 'Û',
 'Å?' => '?',
 'Ã?' => 'Ü',
 'ž' => '?',
 'Ã?' => 'Þ',
 'Ÿ' => '?',
 'Ã?' => 'ß',
 '¡' => '¡',
 'á' => 'á',
 '¢' => '¢',
 'â' => 'â',
 '£' => '£',
 'ã' => 'ã',
 '¤' => '¤',
 'ä' => 'ä',
 'Â¥' => '¥',
 'Ã¥' => 'å',
 '¦' => '¦',
 'æ' => 'æ',
 '§' => '§',
 'ç' => 'ç',
 '¨' => '¨',
 'è' => 'è',
 '©' => '©',
 'é' => 'é',
 'ª' => 'ª',
 'ê' => 'ê',
 '«' => '«',
 'ë' => 'ë',
 '¬' => '¬',
 'ì' => 'ì',
 '®' => '®',
 'î' => 'î',
 '¯' => '¯',
 'ï' => 'ï',
 '°' => '°',
 'ð' => 'ð',
 '±' => '±',
 'ñ' => 'ñ',
 '²' => '²',
 'ò' => 'ò',
 '³' => '³',
 'ó' => 'ó',
 '´' => '´',
 'ô' => 'ô',
 'µ' => 'µ',
 'õ' => 'õ',
 '¶' => '¶',
 'ö' => 'ö',
 '·' => '·',
 '÷' => '÷',
 '¸' => '¸',
 'ø' => 'ø',
 '¹' => '¹',
 'ù' => 'ù',
 'º' => 'º',
 'ú' => 'ú',
 '»' => '»',
 'û' => 'û',
 '¼' => '¼',
 'ü' => 'ü',
 '½' => '½',
 'ý' => 'ý',
 '¾' => '¾',
 'þ' => 'þ',
 '¿' => '¿',
 'ÿ' => 'ÿ',
 'Ã?' => 'À',
 // 1 char errors last (don't use them, because of false-positives)
 //'Ã'        => 'Á',
 //'Å'        => '?',
 //'Ã'        => 'Í',
 //'Ã'        => 'Ï',
 //'Ã'        => 'Ð',
 //'Ã'        => 'Ý',
 //'Ã'        => 'à',
 //'Ã'        => 'í',
 ];
 
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