Reemplazar comillas de Word en UTF-8

$quotes = array( "\xC2\xAB" => '"', // « (U+00AB) in UTF-8 "\xC2\xBB" => '"', // » (U+00BB) in UTF-8 "\xE2\x80\x98" => "'", // ‘ (U+2018) in UTF-8 "\xE2\x80\x99" => "'", // ’ (U+2019) in UTF-8 "\xE2\x80\x9A" => "'", // ‚ (U+201A) in UTF-8 "\xE2\x80\x9B" => "'", // ‛ (U+201B) in UTF-8 "\xE2\x80\x9C" => '"', // “ (U+201C) in UTF-8 "\xE2\x80\x9D" => '"', // ” (U+201D) in UTF-8 "\xE2\x80\x9E" => '"', // „ (U+201E) in UTF-8 "\xE2\x80\x9F" => '"', // ‟ (U+201F) in UTF-8 "\xE2\x80\xB9" => "'", // ‹ (U+2039) in UTF-8 "\xE2\x80\xBA" => "'", // › (U+203A) in UTF-8 ); $str = strtr($str, $quotes);

Extraído de: stackoverflow.com