$str=这是一个测试程序1;
echo getfirstcharcode($str);
function getfirstcharcode($str){
$str= iconv(utf-8,gb2312, $str);
$targetchar='*';
$i=0;
while($i='b0'){ //汉字的开始
$t=getletter(hexdec(bin2hex(substr($str,$i,2))));
$targetchar=$t==-1 ? '*' : $t ;
//printf(%c,$t==-1 ? '*' : $t );
break;
//$i+=2;
}
else{
$targetchar=substr($str,$i,1);
break;
//printf(%s,substr($str,$i,1));
//$i++;
}
}
if(is_numeric($targetchar)){
return chr($targetchar);
}
else{
return $targetchar;
}
}
function getletter($num){
$limit=array( //gb2312 拼音排序
array(45217,45252), //a
array(45253,45760), //b
array(45761,46317), //c
array(46318,46825), //d
array(46826,47009), //e
array(47010,47296), //f
array(47297,47613), //g
array(47614,48118), //h
array(0,0), //i
array(48119,49061), //j
array(49062,49323), //k
array(49324,49895), //l
array(49896,50370), //m
array(50371,50613), //n
array(50614,50621), //o
array(50622,50905), //p
array(50906,51386), //q
array(51387,51445), //r
array(51446,52217), //s
array(52218,52697), //t
array(0,0), //u
array(0,0), //v
array(52698,52979), //w
array(52980,53688), //x
array(53689,54480), //y
array(54481,55289), //z
);
$char_index=65;
foreach($limit as $k=>$v){
if($num>=$v[0] && $num<=$v[1]){
$char_index+=$k;
return $char_index;
}
}
return -1;
}
