PHP：编写一个简单的 removeEmoji 函数
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时间：2020-08-25 04:15:45 来源:igfitidea点击:
PHP : writing a simple removeEmoji function
提问by sglessard
I'm looking for a simple function that would remove Emoji characters from instagram comments. What I've tried for now (with a lot of code from examples I found on SO & other websites) :
我正在寻找一个简单的功能，可以从 Instagram 评论中删除表情符号字符。我现在尝试过的（有很多来自我在 SO 和其他网站上找到的例子的代码）：
// PHP class
public static function removeEmoji($string)
{
// split the string into UTF8 char array
// for loop inside char array
// if char is emoji, remove it
// endfor
// return newstring
}
Any help would be appreciated
任何帮助，将不胜感激
回答by sglessard
I think the preg_replace function is the simpliest solution.
我认为 preg_replace 函数是最简单的解决方案。
As EaterOfCodesuggests, I read the wiki pageand coded new regex since none of SO (or other websites) answers seemed to work for Instagram photo captions (API returning format) . Note: /u identifier is mandatory to match \x unicode chars.
正如EaterOfCode 所建议的那样，我阅读了wiki 页面并编写了新的正则表达式，因为 SO（或其他网站）的答案似乎都不适用于 Instagram 照片标题（API 返回格式）。注意：/u 标识符是匹配 \x unicode 字符所必需的。
public static function removeEmoji($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 $clean_text;
}
The function does not remove all emojis since there are many more, but you get the point.
该功能不会删除所有表情符号，因为还有更多，但您明白了。
Please refer to unicode.org - full emoji list(thanks Epoc)
请参阅unicode.org - 完整的表情符号列表（感谢Epoc）
回答by Adam Merrifield
As apple continues to add emojis to new versions of ios, i will be updating and maintaining this answer.
随着苹果继续向新版本的 ios 添加表情符号，我将更新和维护此答案。
This answer has been updated for ios 12.1. If you have problems, then please check the edit history for previous versions of this answer (having multiple regex in this answer exceeds SO's max post body length)
此答案已针对 ios 12.1 更新。如果您有问题，请检查此答案以前版本的编辑历史记录（此答案中的多个正则表达式超过了 SO 的最大帖子正文长度）
Beta Version for ios 12.1 (Nov, 2018)
ios 12.1 Beta 版（2018 年 11 月）
public static function removeEmoji($string)
return preg_replace('/[\x{1F3F4}](?:\x{E0067}\x{E0062}\x{E0077}\x{E006C}\x{E0073}\x{E007F})|[\x{1F3F4}](?:\x{E0067}\x{E0062}\x{E0073}\x{E0063}\x{E0074}\x{E007F})|[\x{1F3F4}](?:\x{E0067}\x{E0062}\x{E0065}\x{E006E}\x{E0067}\x{E007F})|[\x{1F3F4}](?:\x{200D}\x{2620}\x{FE0F})|[\x{1F3F3}](?:\x{FE0F}\x{200D}\x{1F308})|[\x{0023}\x{002A}\x{0030}\x{0031}\x{0032}\x{0033}\x{0034}\x{0035}\x{0036}\x{0037}\x{0038}\x{0039}](?:\x{FE0F}\x{20E3})|[\x{1F415}](?:\x{200D}\x{1F9BA})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F467}\x{200D}\x{1F467})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F467}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F467})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F466}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F466})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F467}\x{200D}\x{1F467})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F466}\x{200D}\x{1F466})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F467}\x{200D}\x{1F466})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F467})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F467}\x{200D}\x{1F467})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F466}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F467}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F467})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F466})|[\x{1F469}](?:\x{200D}\x{2764}\x{FE0F}\x{200D}\x{1F469})|[\x{1F469}\x{1F468}](?:\x{200D}\x{2764}\x{FE0F}\x{200D}\x{1F468})|[\x{1F469}](?:\x{200D}\x{2764}\x{FE0F}\x{200D}\x{1F48B}\x{200D}\x{1F469})|[\x{1F469}\x{1F468}](?:\x{200D}\x{2764}\x{FE0F}\x{200D}\x{1F48B}\x{200D}\x{1F468})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9BD})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9BC})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9AF})|[\x{1F575}\x{1F3CC}\x{26F9}\x{1F3CB}](?:\x{FE0F}\x{200D}\x{2640}\x{FE0F})|[\x{1F575}\x{1F3CC}\x{26F9}\x{1F3CB}](?:\x{FE0F}\x{200D}\x{2642}\x{FE0F})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F692})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F680})|[\x{1F468}\x{1F469}](?:\x{200D}\x{2708}\x{FE0F})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F3A8})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F3A4})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F4BB})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F52C})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F4BC})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F3ED})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F527})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F373})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F33E})|[\x{1F468}\x{1F469}](?:\x{200D}\x{2696}\x{FE0F})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F3EB})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F393})|[\x{1F468}\x{1F469}](?:\x{200D}\x{2695}\x{FE0F})|[\x{1F471}\x{1F64D}\x{1F64E}\x{1F645}\x{1F646}\x{1F481}\x{1F64B}\x{1F9CF}\x{1F647}\x{1F926}\x{1F937}\x{1F46E}\x{1F482}\x{1F477}\x{1F473}\x{1F9B8}\x{1F9B9}\x{1F9D9}\x{1F9DA}\x{1F9DB}\x{1F9DC}\x{1F9DD}\x{1F9DE}\x{1F9DF}\x{1F486}\x{1F487}\x{1F6B6}\x{1F9CD}\x{1F9CE}\x{1F3C3}\x{1F46F}\x{1F9D6}\x{1F9D7}\x{1F3C4}\x{1F6A3}\x{1F3CA}\x{1F6B4}\x{1F6B5}\x{1F938}\x{1F93C}\x{1F93D}\x{1F93E}\x{1F939}\x{1F9D8}](?:\x{200D}\x{2640}\x{FE0F})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9B2})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9B3})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9B1})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9B0})|[\x{1F471}\x{1F64D}\x{1F64E}\x{1F645}\x{1F646}\x{1F481}\x{1F64B}\x{1F9CF}\x{1F647}\x{1F926}\x{1F937}\x{1F46E}\x{1F482}\x{1F477}\x{1F473}\x{1F9B8}\x{1F9B9}\x{1F9D9}\x{1F9DA}\x{1F9DB}\x{1F9DC}\x{1F9DD}\x{1F9DE}\x{1F9DF}\x{1F486}\x{1F487}\x{1F6B6}\x{1F9CD}\x{1F9CE}\x{1F3C3}\x{1F46F}\x{1F9D6}\x{1F9D7}\x{1F3C4}\x{1F6A3}\x{1F3CA}\x{1F6B4}\x{1F6B5}\x{1F938}\x{1F93C}\x{1F93D}\x{1F93E}\x{1F939}\x{1F9D8}](?:\x{200D}\x{2642}\x{FE0F})|[\x{1F441}](?:\x{FE0F}\x{200D}\x{1F5E8}\x{FE0F})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1E9}\x{1F1F0}\x{1F1F2}\x{1F1F3}\x{1F1F8}\x{1F1F9}\x{1F1FA}](?:\x{1F1FF})|[\x{1F1E7}\x{1F1E8}\x{1F1EC}\x{1F1F0}\x{1F1F1}\x{1F1F2}\x{1F1F5}\x{1F1F8}\x{1F1FA}](?:\x{1F1FE})|[\x{1F1E6}\x{1F1E8}\x{1F1F2}\x{1F1F8}](?:\x{1F1FD})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1EC}\x{1F1F0}\x{1F1F2}\x{1F1F5}\x{1F1F7}\x{1F1F9}\x{1F1FF}](?:\x{1F1FC})|[\x{1F1E7}\x{1F1E8}\x{1F1F1}\x{1F1F2}\x{1F1F8}\x{1F1F9}](?:\x{1F1FB})|[\x{1F1E6}\x{1F1E8}\x{1F1EA}\x{1F1EC}\x{1F1ED}\x{1F1F1}\x{1F1F2}\x{1F1F3}\x{1F1F7}\x{1F1FB}](?:\x{1F1FA})|[\x{1F1E6}\x{1F1E7}\x{1F1EA}\x{1F1EC}\x{1F1ED}\x{1F1EE}\x{1F1F1}\x{1F1F2}\x{1F1F5}\x{1F1F8}\x{1F1F9}\x{1F1FE}](?:\x{1F1F9})|[\x{1F1E6}\x{1F1E7}\x{1F1EA}\x{1F1EC}\x{1F1EE}\x{1F1F1}\x{1F1F2}\x{1F1F5}\x{1F1F7}\x{1F1F8}\x{1F1FA}\x{1F1FC}](?:\x{1F1F8})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1EA}\x{1F1EB}\x{1F1EC}\x{1F1ED}\x{1F1EE}\x{1F1F0}\x{1F1F1}\x{1F1F2}\x{1F1F3}\x{1F1F5}\x{1F1F8}\x{1F1F9}](?:\x{1F1F7})|[\x{1F1E6}\x{1F1E7}\x{1F1EC}\x{1F1EE}\x{1F1F2}](?:\x{1F1F6})|[\x{1F1E8}\x{1F1EC}\x{1F1EF}\x{1F1F0}\x{1F1F2}\x{1F1F3}](?:\x{1F1F5})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1E9}\x{1F1EB}\x{1F1EE}\x{1F1EF}\x{1F1F2}\x{1F1F3}\x{1F1F7}\x{1F1F8}\x{1F1F9}](?:\x{1F1F4})|[\x{1F1E7}\x{1F1E8}\x{1F1EC}\x{1F1ED}\x{1F1EE}\x{1F1F0}\x{1F1F2}\x{1F1F5}\x{1F1F8}\x{1F1F9}\x{1F1FA}\x{1F1FB}](?:\x{1F1F3})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1E9}\x{1F1EB}\x{1F1EC}\x{1F1ED}\x{1F1EE}\x{1F1EF}\x{1F1F0}\x{1F1F2}\x{1F1F4}\x{1F1F5}\x{1F1F8}\x{1F1F9}\x{1F1FA}\x{1F1FF}](?:\x{1F1F2})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1EC}\x{1F1EE}\x{1F1F2}\x{1F1F3}\x{1F1F5}\x{1F1F8}\x{1F1F9}](?:\x{1F1F1})|[\x{1F1E8}\x{1F1E9}\x{1F1EB}\x{1F1ED}\x{1F1F1}\x{1F1F2}\x{1F1F5}\x{1F1F8}\x{1F1F9}\x{1F1FD}](?:\x{1F1F0})|[\x{1F1E7}\x{1F1E9}\x{1F1EB}\x{1F1F8}\x{1F1F9}](?:\x{1F1EF})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1EB}\x{1F1EC}\x{1F1F0}\x{1F1F1}\x{1F1F3}\x{1F1F8}\x{1F1FB}](?:\x{1F1EE})|[\x{1F1E7}\x{1F1E8}\x{1F1EA}\x{1F1EC}\x{1F1F0}\x{1F1F2}\x{1F1F5}\x{1F1F8}\x{1F1F9}](?:\x{1F1ED})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1E9}\x{1F1EA}\x{1F1EC}\x{1F1F0}\x{1F1F2}\x{1F1F3}\x{1F1F5}\x{1F1F8}\x{1F1F9}\x{1F1FA}\x{1F1FB}](?:\x{1F1EC})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1EC}\x{1F1F2}\x{1F1F3}\x{1F1F5}\x{1F1F9}\x{1F1FC}](?:\x{1F1EB})|[\x{1F1E6}\x{1F1E7}\x{1F1E9}\x{1F1EA}\x{1F1EC}\x{1F1EE}\x{1F1EF}\x{1F1F0}\x{1F1F2}\x{1F1F3}\x{1F1F5}\x{1F1F7}\x{1F1F8}\x{1F1FB}\x{1F1FE}](?:\x{1F1EA})|[\x{1F1E6}\x{1F1E7}\x{1F1E8}\x{1F1EC}\x{1F1EE}\x{1F1F2}\x{1F1F8}\x{1F1F9}](?:\x{1F1E9})|[\x{1F1E6}\x{1F1E8}\x{1F1EA}\x{1F1EE}\x{1F1F1}\x{1F1F2}\x{1F1F3}\x{1F1F8}\x{1F1F9}\x{1F1FB}](?:\x{1F1E8})|[\x{1F1E7}\x{1F1EC}\x{1F1F1}\x{1F1F8}](?:\x{1F1E7})|[\x{1F1E7}\x{1F1E8}\x{1F1EA}\x{1F1EC}\x{1F1F1}\x{1F1F2}\x{1F1F3}\x{1F1F5}\x{1F1F6}\x{1F1F8}\x{1F1F9}\x{1F1FA}\x{1F1FB}\x{1F1FF}](?:\x{1F1E6})|[\x{00A9}\x{00AE}\x{203C}\x{2049}\x{2122}\x{2139}\x{2194}-\x{2199}\x{21A9}-\x{21AA}\x{231A}-\x{231B}\x{2328}\x{23CF}\x{23E9}-\x{23F3}\x{23F8}-\x{23FA}\x{24C2}\x{25AA}-\x{25AB}\x{25B6}\x{25C0}\x{25FB}-\x{25FE}\x{2600}-\x{2604}\x{260E}\x{2611}\x{2614}-\x{2615}\x{2618}\x{261D}\x{2620}\x{2622}-\x{2623}\x{2626}\x{262A}\x{262E}-\x{262F}\x{2638}-\x{263A}\x{2640}\x{2642}\x{2648}-\x{2653}\x{265F}-\x{2660}\x{2663}\x{2665}-\x{2666}\x{2668}\x{267B}\x{267E}-\x{267F}\x{2692}-\x{2697}\x{2699}\x{269B}-\x{269C}\x{26A0}-\x{26A1}\x{26AA}-\x{26AB}\x{26B0}-\x{26B1}\x{26BD}-\x{26BE}\x{26C4}-\x{26C5}\x{26C8}\x{26CE}-\x{26CF}\x{26D1}\x{26D3}-\x{26D4}\x{26E9}-\x{26EA}\x{26F0}-\x{26F5}\x{26F7}-\x{26FA}\x{26FD}\x{2702}\x{2705}\x{2708}-\x{270D}\x{270F}\x{2712}\x{2714}\x{2716}\x{271D}\x{2721}\x{2728}\x{2733}-\x{2734}\x{2744}\x{2747}\x{274C}\x{274E}\x{2753}-\x{2755}\x{2757}\x{2763}-\x{2764}\x{2795}-\x{2797}\x{27A1}\x{27B0}\x{27BF}\x{2934}-\x{2935}\x{2B05}-\x{2B07}\x{2B1B}-\x{2B1C}\x{2B50}\x{2B55}\x{3030}\x{303D}\x{3297}\x{3299}\x{1F004}\x{1F0CF}\x{1F170}-\x{1F171}\x{1F17E}-\x{1F17F}\x{1F18E}\x{1F191}-\x{1F19A}\x{1F201}-\x{1F202}\x{1F21A}\x{1F22F}\x{1F232}-\x{1F23A}\x{1F250}-\x{1F251}\x{1F300}-\x{1F321}\x{1F324}-\x{1F393}\x{1F396}-\x{1F397}\x{1F399}-\x{1F39B}\x{1F39E}-\x{1F3F0}\x{1F3F3}-\x{1F3F5}\x{1F3F7}-\x{1F3FA}\x{1F400}-\x{1F4FD}\x{1F4FF}-\x{1F53D}\x{1F549}-\x{1F54E}\x{1F550}-\x{1F567}\x{1F56F}-\x{1F570}\x{1F573}-\x{1F57A}\x{1F587}\x{1F58A}-\x{1F58D}\x{1F590}\x{1F595}-\x{1F596}\x{1F5A4}-\x{1F5A5}\x{1F5A8}\x{1F5B1}-\x{1F5B2}\x{1F5BC}\x{1F5C2}-\x{1F5C4}\x{1F5D1}-\x{1F5D3}\x{1F5DC}-\x{1F5DE}\x{1F5E1}\x{1F5E3}\x{1F5E8}\x{1F5EF}\x{1F5F3}\x{1F5FA}-\x{1F64F}\x{1F680}-\x{1F6C5}\x{1F6CB}-\x{1F6D2}\x{1F6D5}\x{1F6E0}-\x{1F6E5}\x{1F6E9}\x{1F6EB}-\x{1F6EC}\x{1F6F0}\x{1F6F3}-\x{1F6FA}\x{1F7E0}-\x{1F7EB}\x{1F90D}-\x{1F93A}\x{1F93C}-\x{1F945}\x{1F947}-\x{1F971}\x{1F973}-\x{1F976}\x{1F97A}-\x{1F9A2}\x{1F9A5}-\x{1F9AA}\x{1F9AE}-\x{1F9CA}\x{1F9CD}-\x{1F9FF}\x{1FA70}-\x{1FA73}\x{1FA78}-\x{1FA7A}\x{1FA80}-\x{1FA82}\x{1FA90}-\x{1FA95}]/u', '', $string);
}
回答by agapitocandemor
Updated the correct answer with more codes, just a few emojis are left.
用更多代码更新了正确答案，只剩下几个表情符号。
public static function removeEmoji($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);
// Match Flags
$regexDingbats = '/[\x{1F1E6}-\x{1F1FF}]/u';
$clean_text = preg_replace($regexDingbats, '', $clean_text);
// Others
$regexDingbats = '/[\x{1F910}-\x{1F95E}]/u';
$clean_text = preg_replace($regexDingbats, '', $clean_text);
$regexDingbats = '/[\x{1F980}-\x{1F991}]/u';
$clean_text = preg_replace($regexDingbats, '', $clean_text);
$regexDingbats = '/[\x{1F9C0}]/u';
$clean_text = preg_replace($regexDingbats, '', $clean_text);
$regexDingbats = '/[\x{1F9F9}]/u';
$clean_text = preg_replace($regexDingbats, '', $clean_text);
return $clean_text;
}
回答by Jo?o Neto
I developed a funtcion using the parser from UTF-8 for ISO-8859-1 in php ( who returns a ? character for invalid characters in conversion ).
我使用 UTF-8 中的解析器为 php 中的 ISO-8859-1 开发了一个函数（谁在转换中为无效字符返回一个 ? 字符）。
function removeEmojis( $string ) {
$string = str_replace( "?", "{%}", $string );
$string = mb_convert_encoding( $string, "ISO-8859-1", "UTF-8" );
$string = mb_convert_encoding( $string, "UTF-8", "ISO-8859-1" );
$string = str_replace( array( "?", "? ", " ?" ), array(""), $string );
$string = str_replace( "{%}", "?", $string );
return trim( $string );
}
Explanation:
解释：
convert the string from utf-8 to iso-8859-1
return back to utf-8 (mb_ function replace invalid characters to ''?''remove non-valid characters )
Replace ? to none
Return back the ''?'' character from the original string
将字符串从 utf-8 转换为 iso-8859-1
返回 utf-8（mb_ 函数将无效字符替换为 ''?''remove non-valid characters ）
代替 ？没有
从原始字符串中返回 ''?'' 字符
Make sure you are using UTF-8 to work.
确保您使用 UTF-8 来工作。
回答by Beardminator
We had a really long fight with emojis at my work, we found a few regex for this problem but none of them worked. This one is working:
在我的工作中，我们与表情符号进行了长时间的斗争，我们为这个问题找到了一些正则表达式，但没有一个奏效。这个正在工作：
Edit: This does not cover ALL the emojis. I'm still searching for the Holy Grail of Emoji Regexp, but not found it yet.
编辑：这不包括所有表情符号。我仍在寻找 Emoji Regexp 的圣杯，但还没有找到。
return preg_replace('/([0-9|#][\x{20E3}])|[\x{00ae}\x{00a9}\x{203C}\x{2047}\x{2048}\x{2049}\x{3030}\x{303D}\x{2139}\x{2122}\x{3297}\x{3299}][\x{FE00}-\x{FEFF}]?|[\x{2190}-\x{21FF}][\x{FE00}-\x{FEFF}]?|[\x{2300}-\x{23FF}][\x{FE00}-\x{FEFF}]?|[\x{2460}-\x{24FF}][\x{FE00}-\x{FEFF}]?|[\x{25A0}-\x{25FF}][\x{FE00}-\x{FEFF}]?|[\x{2600}-\x{27BF}][\x{FE00}-\x{FEFF}]?|[\x{2900}-\x{297F}][\x{FE00}-\x{FEFF}]?|[\x{2B00}-\x{2BF0}][\x{FE00}-\x{FEFF}]?|[\x{1F000}-\x{1F6FF}][\x{FE00}-\x{FEFF}]?/u', '', $text);
回答by Erfun
It's a simple regex but supports it all!
这是一个简单的正则表达式，但支持它！
$re = '/[
(\x{1F600}-\x{1F64F})|
(\x{2700}-\x{27BF})|
(\x{1F680}-\x{1F6FF})|
(\x{24C2}-\x{1F251})|
(\x{1F30D}-\x{1F567})|
(\x{1F900}-\x{1F9FF})|
(\x{1F300}-\x{1F5FF})
]/mu';
Check out the result in here (regex101).
在此处查看结果(regex101)。
So your php function can be:
所以你的 php 函数可以是：
function removeEmojis($input) {
$re = '/[
(\x{1F600}-\x{1F64F})|
(\x{2700}-\x{27BF})|
(\x{1F680}-\x{1F6FF})|
(\x{24C2}-\x{1F251})|
(\x{1F30D}-\x{1F567})|
(\x{1F900}-\x{1F9FF})|
(\x{1F300}-\x{1F5FF})
]/mu';
$result = preg_replace($re, "", $input);
return $result;
}
回答by jchook
Since Emoji characters use the private use area of unicode, you could use preg_replace()to remove that entire region of encoded characters from U+E000to U+F8FF.
由于表情符使用Unicode私人使用的区域，你可以使用preg_replace()从删除编码字符的是整个区域U+E000来U+F8FF。
function removeEmoji($string) {
return preg_replace('/&#x(e[0-9a-f][0-9a-f][0-9a-f]|f[0-8][0-9a-f][0-9a-f])/i', '', $string);
}
回答by Atef
I have solved this issue by using the same code WordPress uses to replace emojis by images
我通过使用 WordPress 用来用图像替换表情符号的相同代码解决了这个问题
here is the code that I used and it worked perfectly as it has a comprehensive list of the most used emojis
这是我使用的代码，它运行良好，因为它有一个最常用的表情符号的完整列表
The full code exists here https://pastebin.com/8MqGdD6p
完整代码存在于此处https://pastebin.com/8MqGdD6p
here is how it works but make sure to copy the code from pastebin as this is the non-complete code
这是它的工作原理，但请确保从 pastebin 复制代码，因为这是不完整的代码
$content ='<span class="do">?</span> where emojis exist';
$partials = array('👩‍); // the list of emojis
foreach ( $partials as $emojum ) {
if ( version_compare( phpversion(), '5.4', '<' ) ) {
$emoji_char = html_entity_decode( $emojum, ENT_COMPAT, 'UTF-8' );
} else {
$emoji_char = html_entity_decode( $emojum );
}
if ( false !== strpos( $content, $emoji_char ) ) {
$content = preg_replace( "/$emoji_char/", '', $content );
}
}
回答by Lee Jun
function emojiFilter($text){
$text = json_encode($text);
preg_match_all("/(\\ud83c\\u[0-9a-f]{4})|(\\ud83d\\u[0-9a-f]{4})|(\\u[0-9a-f]{4})/", $text, $matchs);
if(!isset($matchs[0][0])) { return json_decode($text, true); }
$emoji = $matchs[0];
foreach($emoji as $ec) {
$hex = substr($ec, -4);
if(strlen($ec)==6) {
if($hex>='2600' and $hex<='27ff') {
$text = str_replace($ec, '', $text);
}
} else {
if($hex>='dc00' and $hex<='dfff') {
$text = str_replace($ec, '', $text);
}
}
}
return json_decode($text, true); }
回答by Omar SADEK
@sglessard since the code is outdated, here the full list of all Emoji for 07/12/2018 You will be able to generate it, by running the source code i posted
@sglessard 由于代码已过时，这里是 07/12/2018 的所有表情符号的完整列表您将能够通过运行我发布的源代码来生成它
Please let me know if you find any kind of issue, thank you.
如果您发现任何问题，请告诉我，谢谢。
public static function removeEmoji($text) {
$regexEmoticons = [
'/[\x{0023}]/u',
'/[\x{002A}]/u',
'/[\x{00A9}]/u',
'/[\x{00AE}]/u',
'/[\x{200D}]/u',
'/[\x{203C}]/u',
'/[\x{2049}]/u',
'/[\x{20E3}]/u',
'/[\x{2122}]/u',
'/[\x{2139}]/u',
'/[\x{2194}-\x{2199}]/u',
'/[\x{21A9}-\x{21AA}]/u',
'/[\x{231A}-\x{231B}]/u',
'/[\x{2328}]/u',
'/[\x{23CF}]/u',
'/[\x{23E9}-\x{23F3}]/u',
'/[\x{23F8}-\x{23FA}]/u',
'/[\x{24C2}]/u',
'/[\x{25AA}-\x{25AB}]/u',
'/[\x{25B6}]/u',
'/[\x{25C0}]/u',
'/[\x{25FB}-\x{25FE}]/u',
'/[\x{2600}-\x{2604}]/u',
'/[\x{260E}]/u',
'/[\x{2611}]/u',
'/[\x{2614}-\x{2615}]/u',
'/[\x{2618}]/u',
'/[\x{261D}]/u',
'/[\x{2620}]/u',
'/[\x{2622}-\x{2623}]/u',
'/[\x{2626}]/u',
'/[\x{262A}]/u',
'/[\x{262E}-\x{262F}]/u',
'/[\x{2638}-\x{263A}]/u',
'/[\x{2640}]/u',
'/[\x{2642}]/u',
'/[\x{2648}-\x{2653}]/u',
'/[\x{265F}-\x{2660}]/u',
'/[\x{2663}]/u',
'/[\x{2665}-\x{2666}]/u',
'/[\x{2668}]/u',
'/[\x{267B}]/u',
'/[\x{267E}-\x{267F}]/u',
'/[\x{2692}-\x{2697}]/u',
'/[\x{2699}]/u',
'/[\x{269B}-\x{269C}]/u',
'/[\x{26A0}-\x{26A1}]/u',
'/[\x{26AA}-\x{26AB}]/u',
'/[\x{26B0}-\x{26B1}]/u',
'/[\x{26BD}-\x{26BE}]/u',
'/[\x{26C4}-\x{26C5}]/u',
'/[\x{26C8}]/u',
'/[\x{26CE}-\x{26CF}]/u',
'/[\x{26D1}]/u',
'/[\x{26D3}-\x{26D4}]/u',
'/[\x{26E9}-\x{26EA}]/u',
'/[\x{26F0}-\x{26F5}]/u',
'/[\x{26F7}-\x{26FA}]/u',
'/[\x{26FD}]/u',
'/[\x{2702}]/u',
'/[\x{2705}]/u',
'/[\x{2708}-\x{270D}]/u',
'/[\x{270F}]/u',
'/[\x{2712}]/u',
'/[\x{2714}]/u',
'/[\x{2716}]/u',
'/[\x{271D}]/u',
'/[\x{2721}]/u',
'/[\x{2728}]/u',
'/[\x{2733}-\x{2734}]/u',
'/[\x{2744}]/u',
'/[\x{2747}]/u',
'/[\x{274C}]/u',
'/[\x{274E}]/u',
'/[\x{2753}-\x{2755}]/u',
'/[\x{2757}]/u',
'/[\x{2763}-\x{2764}]/u',
'/[\x{2795}-\x{2797}]/u',
'/[\x{27A1}]/u',
'/[\x{27B0}]/u',
'/[\x{27BF}]/u',
'/[\x{2934}-\x{2935}]/u',
'/[\x{2B05}-\x{2B07}]/u',
'/[\x{2B1B}-\x{2B1C}]/u',
'/[\x{2B50}]/u',
'/[\x{2B55}]/u',
'/[\x{3030}]/u',
'/[\x{303D}]/u',
'/[\x{3297}]/u',
'/[\x{3299}]/u',
'/[\x{FE0F}]/u',
'/[\x{1F004}]/u',
'/[\x{1F0CF}]/u',
'/[\x{1F170}-\x{1F171}]/u',
'/[\x{1F17E}-\x{1F17F}]/u',
'/[\x{1F18E}]/u',
'/[\x{1F191}-\x{1F19A}]/u',
'/[\x{1F1E6}-\x{1F1FF}]/u',
'/[\x{1F201}-\x{1F202}]/u',
'/[\x{1F21A}]/u',
'/[\x{1F22F}]/u',
'/[\x{1F232}-\x{1F23A}]/u',
'/[\x{1F250}-\x{1F251}]/u',
'/[\x{1F300}-\x{1F321}]/u',
'/[\x{1F324}-\x{1F393}]/u',
'/[\x{1F396}-\x{1F397}]/u',
'/[\x{1F399}-\x{1F39B}]/u',
'/[\x{1F39E}-\x{1F3F0}]/u',
'/[\x{1F3F3}-\x{1F3F5}]/u',
'/[\x{1F3F7}-\x{1F3FA}]/u',
'/[\x{1F400}-\x{1F4FD}]/u',
'/[\x{1F4FF}-\x{1F53D}]/u',
'/[\x{1F549}-\x{1F54E}]/u',
'/[\x{1F550}-\x{1F567}]/u',
'/[\x{1F56F}-\x{1F570}]/u',
'/[\x{1F573}-\x{1F57A}]/u',
'/[\x{1F587}]/u',
'/[\x{1F58A}-\x{1F58D}]/u',
'/[\x{1F590}]/u',
'/[\x{1F595}-\x{1F596}]/u',
'/[\x{1F5A4}-\x{1F5A5}]/u',
'/[\x{1F5A8}]/u',
'/[\x{1F5B1}-\x{1F5B2}]/u',
'/[\x{1F5BC}]/u',
'/[\x{1F5C2}-\x{1F5C4}]/u',
'/[\x{1F5D1}-\x{1F5D3}]/u',
'/[\x{1F5DC}-\x{1F5DE}]/u',
'/[\x{1F5E1}]/u',
'/[\x{1F5E3}]/u',
'/[\x{1F5E8}]/u',
'/[\x{1F5EF}]/u',
'/[\x{1F5F3}]/u',
'/[\x{1F5FA}-\x{1F64F}]/u',
'/[\x{1F680}-\x{1F6C5}]/u',
'/[\x{1F6CB}-\x{1F6D2}]/u',
'/[\x{1F6E0}-\x{1F6E5}]/u',
'/[\x{1F6E9}]/u',
'/[\x{1F6EB}-\x{1F6EC}]/u',
'/[\x{1F6F0}]/u',
'/[\x{1F6F3}-\x{1F6F9}]/u',
'/[\x{1F910}-\x{1F93A}]/u',
'/[\x{1F93C}-\x{1F93E}]/u',
'/[\x{1F940}-\x{1F945}]/u',
'/[\x{1F947}-\x{1F970}]/u',
'/[\x{1F973}-\x{1F976}]/u',
'/[\x{1F97A}]/u',
'/[\x{1F97C}-\x{1F9A2}]/u',
'/[\x{1F9B0}-\x{1F9B9}]/u',
'/[\x{1F9C0}-\x{1F9C2}]/u',
'/[\x{1F9D0}-\x{1F9FF}]/u',
'/[\x{E0062}-\x{E0063}]/u',
'/[\x{E006C}]/u',
'/[\x{E006E}]/u',
'/[\x{E007F}]/u'
];
return preg_replace($regexEmoticons, '', $text);
}
And here the code to generate it :
这里是生成它的代码：
<?php
$emojisAsHex = [];
$emojisasAsDecHex = [];
preg_match_all(
"/(?:>|\s)+(U\+)(?'emojis'[0-9ABCDEF]{4,5})(?:<|\s)+/",
file_get_contents('http://unicode.org/emoji/charts/full-emoji-list.html'),
$emojisAsHex
);
//flip it, to remove duplication
$emojisAsHex = array_flip(array_flip($emojisAsHex['emojis']));
foreach ($emojisAsHex as $emojiAsHex) {
$emojisasAsDecHex[hexdec($emojiAsHex)] = $emojiAsHex;
}
ksort($emojisasAsDecHex);
$outputHexa = '';
$else = '';
$startI = key($emojisasAsDecHex);
$endI =max(array_keys($emojisasAsDecHex)) + 1;
for ($i = $startI; $i < $endI; $i++) {
if (isset($emojisasAsDecHex[$i]) && isset($emojisasAsDecHex[(1 + $i)])) {
$outputHexa .= "'/[\x{" . $emojisasAsDecHex[$i] . '}';
while (isset($emojisasAsDecHex[(1 + $i)])) {
$i++;
}
$outputHexa .= '-\x{' . $emojisasAsDecHex[$i] . "}]/u'," . PHP_EOL;
} else if (isset($emojisasAsDecHex[$i])) {
$outputHexa .= "'/[\x{" . $emojisasAsDecHex[$i] . "}]/u'," . PHP_EOL;
}
}
var_dump($outputHexa);
