获取汉字首字母大写
/* * 获取汉字首字母大写 * */ 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 $asc <= -10247) return "Z"; return null; }
获取每个汉字首字母大写
/* * 获取每个汉字首字母大写 * */ function getEveryFirstChar($string) { $charlist = preg_split('/(?<!^)(?!$)/u', $string); return implode(array_map("getfirstchar", $charlist)); }