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<?php $result = "°Freenew°\x90ɮ\xc2\xe4dfg"; //$result = trim($result,"\xc2"/*"\xa0"*/); //echo preg_replace('#[\x00-\x1F\x7F-\x9F]#', '', $result); //reject overly long 2 byte sequences, as well as characters above U+10000 and replace with ? echo preg_replace('/[\x00-\x08\x10\x0B\x0C\x0E-\x19\x7F]'. '|[\x00-\x7F][\x80-\xBF]+'. '|([\xC0\xC1]|[\xF0-\xFF])[\x80-\xBF]*'. '|[\xC2-\xDF]((?![\x80-\xBF])|[\x80-\xBF]{2,})'. '|[\xE0-\xEF](([\x80-\xBF](?![\x80-\xBF]))|(?![\x80-\xBF]{2})|[\x80-\xBF]{3,})/S', '?', $result ); /* //reject overly long 3 byte sequences and UTF-16 surrogates and replace with ? $some_string = preg_replace('/\xE0[\x80-\x9F][\x80-\xBF]'. '|\xED[\xA0-\xBF][\x80-\xBF]/S','?', $some_string ); */
Output for git.master, git.master_jit, rfc.property-hooks
°Freenew?ɮ??dfg

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