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php汉字转首字母大写的实现方法:首先创建一个PHP示例文件;然后定义一个“getfirstchar”方法用于获取汉字拼音且将首字母转为大写;最后通过echo输出转换结果即可。

php 汉字如何转首字母大写

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PHP 获取汉字拼音首字母大写

<?php function getfirstchar($s0) {    $fchar = ord(substr($s0, 0, 1));    if (($fchar >= ord("a") and $fchar <= ord("z"))or($fchar >= ord("A") and $fchar <= ord("Z"))) return strtoupper(chr($fchar));    $s = iconv("UTF-8", "GBK", $s0);    $asc = ord($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 $asc <= -17923)return "G";    if ($asc >= -17922 and $asc <= -17418)return "H";    if ($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 $asc <= -10247)return "Z";    return null;} function mb_str_split($string) {    return preg_split('/(?<!^)(?!$)/u', $string);} function get_letter($string) {    $charlist = mb_str_split($string);    return implode(array_map("getfirstchar", $charlist));}echo get_letter("刹车片");?>

结果:

SCP

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