PHP 获取第一个汉字大写首字母

/*** MethodName:获取第一个汉字大写首字母* Comment:*/
function getFirstCharters($str)
{if (empty($str)) {return '';}//取出参数字符串中的首个字符$temp_str = substr($str, 0, 1);if (ord($temp_str) > 127) {$str = substr($str, 0, 3);} else {$str = $temp_str;$fchar = ord($str{0});if ($fchar >= ord('A') && $fchar <= ord('z')) {return strtoupper($temp_str);} else {return null;}}$s1 = iconv('UTF-8', 'gb2312//IGNORE', $str);if (empty($s1)) {return null;}$s2 = iconv('gb2312', 'UTF-8', $s1);if (empty($s2)) {return null;}$s = $s2 == $str ? $s1 : $str;$asc = ord($s{0}) * 256 + ord($s{1}) - 65536;if ($asc >= -20319 && $asc <= -20284)return 'A';if ($asc >= -20283 && $asc <= -19776)return 'B';if ($asc >= -19775 && $asc <= -19219)return 'C';if ($asc >= -19218 && $asc <= -18711)return 'D';if ($asc >= -18710 && $asc <= -18527)return 'E';if ($asc >= -18526 && $asc <= -18240)return 'F';if ($asc >= -18239 && $asc <= -17923)return 'G';if ($asc >= -17922 && $asc <= -17418)return 'H';if ($asc >= -17417 && $asc <= -16475)return 'J';if ($asc >= -16474 && $asc <= -16213)return 'K';if ($asc >= -16212 && $asc <= -15641)return 'L';if ($asc >= -15640 && $asc <= -15166)return 'M';if ($asc >= -15165 && $asc <= -14923)return 'N';if ($asc >= -14922 && $asc <= -14915)return 'O';if ($asc >= -14914 && $asc <= -14631)return 'P';if ($asc >= -14630 && $asc <= -14150)return 'Q';if ($asc >= -14149 && $asc <= -14091)return 'R';if ($asc >= -14090 && $asc <= -13319)return 'S';if ($asc >= -13318 && $asc <= -12839)return 'T';if ($asc >= -12838 && $asc <= -12557)return 'W';if ($asc >= -12556 && $asc <= -11848)return 'X';if ($asc >= -11847 && $asc <= -11056)return 'Y';if ($asc >= -11055 && $asc <= -10247)return 'Z';return rare_words($asc);
}/*** MethodName:百家姓中的生僻字* Comment:*/
function rare_words($asc = '')
{$rare_arr = array(-3652 => array('word' => "窦", 'first_char' => 'D'),-8503 => array('word' => "奚", 'first_char' => 'X'),-9286 => array('word' => "酆", 'first_char' => 'F'),-7761 => array('word' => "岑", 'first_char' => 'C'),-5128 => array('word' => "滕", 'first_char' => 'T'),-9479 => array('word' => "邬", 'first_char' => 'W'),-5456 => array('word' => "臧", 'first_char' => 'Z'),-7223 => array('word' => "闵", 'first_char' => 'M'),-2877 => array('word' => "裘", 'first_char' => 'Q'),-6191 => array('word' => "缪", 'first_char' => 'M'),-5414 => array('word' => "贲", 'first_char' => 'B'),-4102 => array('word' => "嵇", 'first_char' => 'J'),-8969 => array('word' => "荀", 'first_char' => 'X'),-4938 => array('word' => "於", 'first_char' => 'Y'),-9017 => array('word' => "芮", 'first_char' => 'R'),-2848 => array('word' => "羿", 'first_char' => 'Y'),-9477 => array('word' => "邴", 'first_char' => 'B'),-9485 => array('word' => "隗", 'first_char' => 'K'),-6731 => array('word' => "宓", 'first_char' => 'M'),-9299 => array('word' => "郗", 'first_char' => 'X'),-5905 => array('word' => "栾", 'first_char' => 'L'),-4393 => array('word' => "钭", 'first_char' => 'T'),-9300 => array('word' => "郜", 'first_char' => 'G'),-8706 => array('word' => "蔺", 'first_char' => 'L'),-3613 => array('word' => "胥", 'first_char' => 'X'),-8777 => array('word' => "莘", 'first_char' => 'S'),-6708 => array('word' => "逄", 'first_char' => 'P'),-9302 => array('word' => "郦", 'first_char' => 'L'),-5965 => array('word' => "璩", 'first_char' => 'Q'),-6745 => array('word' => "濮", 'first_char' => 'P'),-4888 => array('word' => "扈", 'first_char' => 'H'),-9309 => array('word' => "郏", 'first_char' => 'J'),-5428 => array('word' => "晏", 'first_char' => 'Y'),-2849 => array('word' => "暨", 'first_char' => 'J'),-7206 => array('word' => "阙", 'first_char' => 'Q'),-4945 => array('word' => "殳", 'first_char' => 'S'),-9753 => array('word' => "夔", 'first_char' => 'K'),-10041 => array('word' => "厍", 'first_char' => 'S'),-5429 => array('word' => "晁", 'first_char' => 'C'),-2396 => array('word' => "訾", 'first_char' => 'Z'),-7205 => array('word' => "阚", 'first_char' => 'K'),-10049 => array('word' => "乜", 'first_char' => 'N'),-10015 => array('word' => "蒯", 'first_char' => 'K'),-3133 => array('word' => "竺", 'first_char' => 'Z'),-6698 => array('word' => "逯", 'first_char' => 'L'),-9799 => array('word' => "俟", 'first_char' => 'Q'),-6749 => array('word' => "澹", 'first_char' => 'T'),-7220 => array('word' => "闾", 'first_char' => 'L'),-10047 => array('word' => "亓", 'first_char' => 'Q'),-10005 => array('word' => "仉", 'first_char' => 'Z'),-3417 => array('word' => "颛", 'first_char' => 'Z'),-6431 => array('word' => "驷", 'first_char' => 'S'),-7226 => array('word' => "闫", 'first_char' => 'Y'),-9293 => array('word' => "鄢", 'first_char' => 'Y'),-6205 => array('word' => "缑", 'first_char' => 'G'),-9764 => array('word' => "佘", 'first_char' => 'S'),-9818 => array('word' => "佴", 'first_char' => 'N'),-9509 => array('word' => "谯", 'first_char' => 'Q'),-3122 => array('word' => "笪", 'first_char' => 'D'),-9823 => array('word' => "佟", 'first_char' => 'T'),);if (array_key_exists($asc, $rare_arr) && $rare_arr[$asc]['first_char']) {return $rare_arr[$asc]['first_char'];} else {return null;}}echo getFirstCharters('测试');

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PHP 获取第一个汉字大写首字母

PHP 获取第一个汉字大写首字母

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