//PHP获取中文名字的首字母 function getFirstChar($s) { $s0 = mb_substr($s, 0, 3); //获取名字的姓 $s = iconv('UTF-8', 'gb2312', $s0); //将UTF-8转换成GB2312编码 if (ord($s0) > 128) { //汉字开头，汉字没有以U、V开头的 $asc = ord($s{ 0}) * 256 + ord($s{ 1}) - 65536; if ($asc >= -20319 and $asc <= -20284) return "A"; if ($asc >= -20283 and $asc <= -19776) return "B"; if ($asc >= -19775 and $asc <= -19219) return "C"; if ($asc >= -19218 and $asc <= -18711) return "D"; if ($asc >= -18710 and $asc <= -18527) return "E"; if ($asc >= -18526 and $asc <= -18240) return "F"; if ($asc >= -18239 and $asc <= -17760) return "G"; if ($asc >= -17759 and $asc <= -17248) return "H"; if ($asc >= -17247 and $asc <= -17418) return "I"; if ($asc >= -17417 and $asc <= -16475) return "J"; if ($asc >= -16474 and $asc <= -16213) return "K"; if ($asc >= -16212 and $asc <= -15641) return "L"; if ($asc >= -15640 and $asc <= -15166) return "M"; if ($asc >= -15165 and $asc <= -14923) return "N"; if ($asc >= -14922 and $asc <= -14915) return "O"; if ($asc >= -14914 and $asc <= -14631) return "P"; if ($asc >= -14630 and $asc <= -14150) return "Q"; if ($asc >= -14149 and $asc <= -14091) return "R"; if ($asc >= -14090 and $asc <= -13319) return "S"; if ($asc >= -13318 and $asc <= -12839) return "T"; if ($asc >= -12838 and $asc <= -12557) return "W"; if ($asc >= -12556 and $asc <= -11848) return "X"; if ($asc >= -11847 and $asc <= -11056) return "Y"; if ($asc >= -11055 and $asc <= -10247) return "Z"; } else if (ord($s) >= 48 and ord($s) <= 57) { //数字开头 switch (iconv_substr($s, 0, 1, 'utf-8')) { case 1: return "Y"; case 2: return "E"; case 3: return "S"; case 4: return "S"; case 5: return "W"; case 6: return "L"; case 7: return "Q"; case 8: return "B"; case 9: return "J"; case 0: return "L"; } } else if (ord($s) >= 65 and ord($s) <= 90) { //大写英文开头 return substr($s, 0, 1); } else if (ord($s) >= 97 and ord($s) <= 122) { //小写英文开头 return strtoupper(substr($s, 0, 1)); } else { return iconv_substr($s0, 0, 1, 'utf-8'); //中英混合的词语，不适合上面的各种情况，因此直接提取首个字符即可 } } //进行排序 public function addPeople() { $userName = array('张三', '三蹦子', '马大帅', '张思', '马大明', '马达分', '马二', '马三', '李四', '王五', '小二', '猫蛋', '狗蛋', '王花', '三毛', '小明', '李刚', '张飞'); sort($userName); $charArray = []; foreach ($userName as $name) { $char = $this->getFirstChar($name); $charArray[$char][] = $name; } ksort($charArray); dump($charArray); die; }

I can only sort by surname. How can I use recursion or other methods to sort by the pinyin of the first or second character of the name? Please help me.