PHP 转义emoji表情

WechatIMG129.jpeg

• 转码

function userTextEncode($str){
    if(!is_string($str)) return $str;
    if(!$str || $str=='undefined') return '';
    $text = json_encode($str);
    $text = preg_replace_callback("/(\\\u[ed][0-9a-f]{3})/i",function($str){
        return addslashes($str[0]);
    },$text);
    return json_decode($text);
}

• 解码

function userTextDecode($str){
    $text = json_encode($str);
    $text = preg_replace_callback('/\\\\\\\\/i',function($str){
        return '\\';
    },$text);
    return json_decode($text);
}