functiongetFirstChar($zh_cn){$firsh_zh=mb_substr($zh_cn,0,1);$fchar=ord($firsh_zh{0});if($fchar>=ord("A")&&$fchar<=ord("z")){returnstrtoupper($firsh_zh{0});}$s1=iconv("UTF-8","gb2312",$firsh_zh);$s2=iconv("gb2312","UTF-8",$s1);if($s2==$firsh_zh){$s=$s1;}else{$s=$firsh_zh;}$asc=ord($s{0})*256+ord($s{1})-65536;if($asc>=-20319and$asc<=-20284)return"A";if($asc>=-20283and$asc<=-19776)return"B";if($asc>=-19775and$asc<=-19219)return"C";if($asc>=-19218and$asc<=-18711)return"D";if($asc>=-18710and$asc<=-18527)return"E";if($asc>=-18526and$asc<=-18240)return"F";if($asc>=-18239and$asc<=-17923)return"G";if($asc>=-17922and$asc<=-17418)return"H";if($asc>=-17417and$asc<=-16475)return"J";if($asc>=-16474and$asc<=-16213)return"K";if($asc>=-16212and$asc<=-15641)return"L";if($asc>=-15640and$asc<=-15166)return"M";if($asc>=-15165and$asc<=-14923)return"N";if($asc>=-14922and$asc<=-14915)return"O";if($asc>=-14914and$asc<=-14631)return"P";if($asc>=-14630and$asc<=-14150)return"Q";if($asc>=-14149and$asc<=-14091)return"R";if($asc>=-14090and$asc<=-13319)return"S";if($asc>=-13318and$asc<=-12839)return"T";if($asc>=-12838and$asc<=-12557)return"W";if($asc>=-12556and$asc<=-11848)return"X";if($asc>=-11847and$asc<=-11056)return"Y";if($asc>=-11055and$asc<=-10247)return"Z";returnnull;}