获取汉字首字母大写function get_letter($string) {<br>
$charlist = mb_str_split($string);<br>
return implode(array_map("getfirstchar", $charlist));<br>
} <br>
function mb_str_split($string) {<br>
// Split at all position not after the start: ^<br>
// and not before the end: $<br>
return preg_split('/(?
}<br>
<br>
function getfirstchar($s0) {<br>
$fchar = ord(substr($s0, 0, 1));<br>
if (($fchar >= ord("a") and $fchar = ord("A") and $fchar
$s = iconv("UTF-8", "GBK", $s0);<br>
$asc = ord($s{0}) * 256 + ord($s{1})-65536;<br>
if ($asc >= -20319 and $asc
if ($asc >= -20283 and $asc
if ($asc >= -19775 and $asc
if ($asc >= -19218 and $asc
if ($asc >= -18710 and $asc
if ($asc >= -18526 and $asc
if ($asc >= -18239 and $asc
if ($asc >= -17922 and $asc
if ($asc >= -17417 and $asc
if ($asc >= -16474 and $asc
if ($asc >= -16212 and $asc
if ($asc >= -15640 and $asc
if ($asc >= -15165 and $asc
if ($asc >= -14922 and $asc
if ($asc >= -14914 and $asc
if ($asc >= -14630 and $asc
if ($asc >= -14149 and $asc
if ($asc >= -14090 and $asc
if ($asc >= -13318 and $asc
if ($asc >= -12838 and $asc
if ($asc >= -12556 and $asc
if ($asc >= -11847 and $asc
if ($asc >= -11055 and $asc
return null;<br>
}
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