The method of obtaining the first letter of Chinese characters by PHP's Custom function _php tips

This article illustrates how PHP custom functions get the initials of Chinese characters. Share to everyone for your reference, specific as follows:

The first letter is important and can be sorted using.

City list and so on.

<?php * * Created on 2016-12-1/function Getfirstcharter ($STR) {if (empty ($STR)) {return ';
  $fchar = Ord ($str {0});
  if ($fchar >= ord (' A ') && $fchar <= ord (' z ')) return Strtoupper ($str {0});
  $s 1 = iconv (' UTF-8 ', ' gb2312 ', $str);
  $s 2 = iconv (' gb2312 ', ' UTF-8 ', $s 1); $s = $s 2 = $str?
  $s 1: $str;
  $ASC = Ord ($s {0}) * 256 + ord ($s {1})-65536;
  if ($asc >= -20319 && $asc <= -20284) return ' A ';
  if ($asc >= -20283 && $asc <= -19776) return ' B ';
  if ($asc >= -19775 && $asc <= -19219) return ' C ';
  if ($asc >= -19218 && $asc <= -18711) return ' D ';
  if ($asc >= -18710 && $asc <= -18527) return ' E ';
  if ($asc >= -18526 && $asc <= -18240) return ' F ';
  if ($asc >= -18239 && $asc <= -17923) return ' G ';
  if ($asc >= -17922 && $asc <= -17418) return ' H '; if ($asc >= -17417 && $asc <=-16475) return ' J ';
  if ($asc >= -16474 && $asc <= -16213) return ' K ';
  if ($asc >= -16212 && $asc <= -15641) return ' L ';
  if ($asc >= -15640 && $asc <= -15166) return ' M ';
  if ($asc >= -15165 && $asc <= -14923) return ' N ';
  if ($asc >= -14922 && $asc <= -14915) return ' O ';
  if ($asc >= -14914 && $asc <= -14631) return ' P ';
  if ($asc >= -14630 && $asc <= -14150) return ' Q ';
  if ($asc >= -14149 && $asc <= -14091) return ' R ';
  if ($asc >= -14090 && $asc <= -13319) return ' S ';
  if ($asc >= -13318 && $asc <= -12839) return ' T ';
  if ($asc >= -12838 && $asc <= -12557) return ' W ';
  if ($asc >= -12556 && $asc <= -11848) return ' X ';
  if ($asc >= -11847 && $asc <= -11056) return ' Y '; if ($asc >= -11055 && $asc <= -10247) return ' Z ';
  return null;
$firstChar = Getfirstcharter (' cloud-dwelling community ');

 Print_r ($firstChar);//output: J?>

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