PHP : 过滤emoji表情 writing a simple removeEmoji function

使用 preg_replace 方法，是最简单的解决方案。
I read the wiki page and coded new regex since none of SO (or other websites) answers seemed to work for Instagram photo captions (API returning format) . Note: /u identifier is mandatory to match \x unicode chars.
public static function removeEmoji($text) {$clean_text = "";// Match Emoticons$regexEmoticons = '/[\x{1F600}-\x{1F64F}]/u';$clean_text = preg_replace($regexEmoticons, '', $text);// Match Miscellaneous Symbols and Pictographs$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;}