有没有可以检测字符是否是拼音的库

@哪吒的狗腿子 那不是应该发一封邮件来确认邮箱是否是瞎填的吗？

这个版本还有点问题，就是遇到 n 或 g 结尾的且也可以作为开头的，就会导致识别错误，例如：

$str = 'juni';

//Actually
['jun']

// Should be
['ju', 'ni']

$str = 'xianguang';

//Actually
['xiang']

// Should be
['xian', 'guang']

最后结合正则加递归实现：

const PINYIN_PATTERN = '/(a|ai|an|ao|ang|bang|ba[ino]?|beng|be[in]?|bing|bia[no]?|bi[en]?|bu|cang|ca[ino]?|ceng|ce[in]?|chang|cha[ino]?|cheng|che[n]?|chi|chong|chou|chuang|chua[in]|chu[ino]?|ci|cong|cou|cuan|cu[ino]?|dang|da[ino]?|deng|de[in]?|dia[no]?|ding|di[ae]?|dong|dou|duan|du[ino]?|e[rn]?|fang|fan|fa|feng|fe[in]{1}|fo[u]?|fu|gang|ga[ino]?|geng|ge[in]?|gong|gou|guang|gua[in]?|gu[ino]?|hang|ha[ino]?|heng|he|hei|hen|he[in]?|hong|hou|huang|hua[in]?|hua|hu[ino]?|jiang|jia[no]?|jiong|ji[nu]?|juan|ju[en]?|j|kang|ka[ino]?|keng|ke[n]?|kong|kou|kuang|kua[in]?|ku[ino]?|lang|la[ino]?|leng|le[i]?|liang|lia[no]?|ling|li[enu]?|long|lou|luan|lu[no]?|lv[e]?|mang|ma[ino]?|meng|me[in]?|mia[no]?|ming|mi[nu]?|mo[u]?|mu|nang|na[ino]?|neng|ne[in]?|niang|nia[no]?|ning|ni[enu]?|nong|nou|nuan|nu[on]?|nv[e]?|o|pang|pa[ino]?|pa|peng|pe[in]?|ping|pia[no]?|pi[en]?|po[u]?|pu|qiang|qia[no]?|qiong|qing|qi[aenu]?|quan|qu[en]?|rang|ra[no]{1}|reng|re[n]?|rong|rou|ri|ruan|ru[ino]?|sang|sa[ino]?|seng|se[n]?|shang|sha[ino]?|sheng|she[in]?|shi|shou|shuang|shua[in]?|shu[ino]?|si|song|sou|suan|su[ino]?|tang|ta[ino]?|teng|te|ting|ti[e]?|tia[no]?|tong|tou|tuan|tu[ino]?|wang|wa[ni]?|weng|we[in]{1}|w[ou]{1}|xia[no]?|xiang|xiong|xing|xi[enu]?|xuan|xu[en]|yang|ya[no]?|ye|ying|yi[n]?|yong|you|yo|yuan|yu[en]?|zang|za[ino]?|zeng|ze[in]?|zhang|zha[ino]?|zheng|zhe[in]?|zhi|zhong|zhou|zhuang|zhua[in]?|zhu[ino]?|zi|zong|zou|zuan|zu[ino]?)/';

// 检查给定字符串是否为拼音
function checkIsPinyin(string $name): array {
    $result = [];

    if (empty($name)) {
        return [];
    }

    if ($count = preg_match_all(PINYIN_PATTERN, $name, $matchs)) {
        $result = reset($matchs);
        if (empty($result)) {
            return $result;
        }

        if (implode('', $result) == $name) {
            return $result;
        } elseif (!empty($result)) {
            foreach($result as $index => $match) {
                $lastChar = substr($match, -1);
                // 对以声母结尾的拼音尝试重新分段
                if (in_array($lastChar, ['n', 'g'])) {
                    $checkedString = substr($match, 0, strlen($match) - 1);
                    $result = array_slice($result, 0, $index + 1);
                    $result[$index] = $checkedString;
                    $uncheckString = substr($name, strlen(implode('', $result)));
                    $result = array_merge($result, checkIsPinyin($uncheckString));
                    break;
                }
            }
        }
    }

    return $result;
}