微信公衆號的Emoji表情過濾

1.獲取微信信息的時候有的用戶只有表情，存入數據庫的時候有可能報錯，2種處理方法

 

一》第一種

function removeEmoji($nickname) {
    $clean_text = "";
    // Match Emoticons
    $regexEmoticons = '/[\x{1F600}-\x{1F64F}]/u';
    $clean_text = preg_replace($regexEmoticons, '', $clean_text);
    // Match Miscellaneous Symbols and Pictographs
    $regexSymbols = '/[\x{1F300}-\x{1F5FF}]/u';
    $clean_text = preg_replace($regexSymbols, '', $clean_text);
    // Match Transport And Map Symbols
    $regexTransport = '/[\x{1F680}-\x{1F6FF}]/u';
    $clean_text = preg_replace($regexTransport, '', $clean_text);
    // Match Miscellaneous Symbols
    $regexMisc = '/[\x{2600}-\x{26FF}]/u';
    $clean_text = preg_replace($regexMisc, '', $clean_text);
    // Match Dingbats
    $regexDingbats = '/[\x{2700}-\x{27BF}]/u';
    $clean_text = preg_replace($regexDingbats, '', $clean_text);
    return $clean_text;
}

-》第二種

$userName = preg_replace("/[\x{1F600}-\x{1F64F}\x{1F300}-\x{1F5FF}\x{1F680}-\x{1F6FF}\x{2600}-\x{26FF}\x{2700}-\x{27BF}]/u", "", $user['nickname']);
$regex = '/[a-zA-Z0-9\x{4e00}-\x{9fa5}]+/u';
preg_match_all($regex, $userName, $mc);
$userName = implode('', $mc[0]);
if($userName == '') {
    $userName = 'unknown';
}