Remove the first letter function
function Getfirstchar ($s 0) {
if (Ord ($s 0) >= "1" and Ord ($s 0) <=ord ("Z")) {return strtoupper ($s 0);}
$s =iconv ("UTF-8", "gb2312", $s 0); If you need to convert to Utf-8.
$s = $s 0;//without conversion
$asc =ord ($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 0;
}
echo Getfirstchar ("Hello");
?>
The above describes the PHP take out the string (including Chinese characters) of the first letter function, including the aspects of the content, I hope to be interested in the PHP tutorial friends helpful.