我们在通过PHP获取微信昵称，并且存于数据库的时候，由于一些昵称带有特殊符号，所以存不进去，这时候我们可以通过下面的方式来处理。

方法二protected function removeEmoji($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;

}

方法二preg_replace("/[\x{1F600}-\x{1F64F}\x{1F300}-\x{1F5FF}\x{1F680}-\x{1F6FF}\x{2600}-\x{26FF}\x{2700}-\x{27BF}]/u","","这里是昵称")

方法三// 过滤掉emoji表情

function filterEmoji($str){

$str = preg_replace_callback( '/./u',

function (array $match) {

return strlen($match[0]) >= 4 ? '' : $match[0];

},

$str);

return $str;

}相关学习推荐：PHP编程从入门到精通