在一些应用中emoji表情非但没有用,而且处理起来很麻烦。比如说,在手机端iso和安卓就不兼容,当然PC端就更加无法识别。因此为了数据统一,我们经常会吧emoji表情处理掉,下面的函数就是处理此标签的
/** * 过滤四个字节的emoji * @param string $text 要过滤的文本 * @return string */ function filterEmoji($text) { // Match Emoticons $regexEmoticons = '/[\x{1F600}-\x{1F64F}]/u'; $text = preg_replace($regexEmoticons, '', $text); // Match Miscellaneous Symbols and Pictographs $regexSymbols = '/[\x{1F300}-\x{1F5FF}]/u'; $text = preg_replace($regexSymbols, '', $text); // Match Transport And Map Symbols $regexTransport = '/[\x{1F680}-\x{1F6FF}]/u'; $text = preg_replace($regexTransport, '', $text); // Match Miscellaneous Symbols $regexMisc = '/[\x{2600}-\x{26FF}]/u'; $text = preg_replace($regexMisc, '', $text); // Match Dingbats $regexDingbats = '/[\x{2700}-\x{27BF}]/u'; $text = preg_replace($regexDingbats, '', $text); $text = preg_replace_callback( '/./u', function (array $match) { return strlen($match[0]) >= 4 ? '' : $match[0]; }, $text); //去除空格 if(!empty($text)){ $text = str_replace(' ', '',$text); } return $text; }