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PHP gets the first character pinyin letter of Chinese string

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Release： 2016-07-25 08:42:14
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  1. $str="这是一个测试程序1";
  3. echo getFirstCharCode($str);
  6. function getFirstCharCode($str){
  7. $str= iconv("UTF-8","gb2312", $str);
  8. $targetChar='*';
  9. $i=0;
  11. while($i $tmp=bin2hex(substr($str,$i,1));
  12. if($tmp>='B0'){ //汉字的开始
  13. $t=getLetter(hexdec(bin2hex(substr($str,$i,2))));
  14. $targetChar=$t==-1 ? '*' : $t ;
  15. //printf("%c",$t==-1 ? '*' : $t );
  16. break;
  17. //$i+=2;
  18. }
  19. else{
  20. $targetChar=substr($str,$i,1);
  21. break;
  22. //printf("%s",substr($str,$i,1));
  23. //$i++;
  24. }
  26. }
  27. if(is_numeric($targetChar)){
  28. return chr($targetChar);
  29. }
  30. else{
  31. return $targetChar;
  32. }
  33. }
  35. function getLetter($num){
  36. $limit=array( //gb2312 拼音排序
  37. array(45217,45252), //A
  38. array(45253,45760), //B
  39. array(45761,46317), //C
  40. array(46318,46825), //D
  41. array(46826,47009), //E
  42. array(47010,47296), //F
  43. array(47297,47613), //G
  44. array(47614,48118), //H
  45. array(0,0), //I
  46. array(48119,49061), //J
  47. array(49062,49323), //K
  48. array(49324,49895), //L
  49. array(49896,50370), //M
  50. array(50371,50613), //N
  51. array(50614,50621), //O
  52. array(50622,50905), //P
  53. array(50906,51386), //Q
  54. array(51387,51445), //R
  55. array(51446,52217), //S
  56. array(52218,52697), //T
  57. array(0,0), //U
  58. array(0,0), //V
  59. array(52698,52979), //W
  60. array(52980,53688), //X
  61. array(53689,54480), //Y
  62. array(54481,55289), //Z
  63. );
  64. $char_index=65;
  65. foreach($limit as $k=>$v){
  66. if($num>=$v[0] && $num<=$v[1]){
  67. $char_index+=$k;
  68. return $char_index;
  69. }
  70. }
  71. return -1;
  72. }
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Related labels：
php获取中文字符串的首字符拼音字母
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