= ord("A") and $fchar <= ord("z") )return strtoupper($s0{0});	$s1 = iconv("UTF-8","gb2312", $s0);	$s2 = iconv("gb2312","UTF-8", $s1);	if($s2 == $s0){$s = $s1;}else{$s = $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 $asc <= -10247) return "Z";	return null;}function pinyin1($zh){	$ret = "";    $s1 = iconv("UTF-8","gb2312", $zh);    $s2 = iconv("gb2312","UTF-8", $s1);    if($s2 == $zh){$zh = $s1;}	for($i = 0; $i < strlen($zh); $i++){		$s1 = substr($zh,$i,1);		$p = ord($s1);		if($p > 160){			$s2 = substr($zh,$i++,2);			$ret .= getfirstchar($s2);		}else{			$ret .= $s1;		}	}	return $ret;}echo "这是中文字符串
";echo pinyin1('这是中文字符串');?>

输出结果：ZSZWZFC