PHP Detect Encoding and Change to UTF-8

Quick notes

Detect and convert encoding to UTF-8 in PHP.

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function changeEncoding($text){
    $encodeType = mb_detect_encoding($text, array('UTF-8', 'ASCII', 'GBK'));
    if ($encodeType=='UTF-8') {
        return $text;  //No need to change
    } else {
        //return iconv($encodeType, "UTF-8//ignore", $text);
        return mb_convert_encoding($text, "UTF-8", $encodeType);  //Change to UTF-8
    }
}