PHP gets the first character of the Chinese string Phonetic alphabet

$str = "This is a test program 1"; echo Getfirstcharcode ($STR); function Getfirstcharcode ($STR) { $str = Iconv ("UTF-8", "gb2312", $str); $targetChar = ' * '; $i = 0; while ($i $tmp =bin2hex (substr ($str, $i, 1)); if ($tmp >= ' B0 ') {//start of Kanji $t =getletter (Hexdec (Bin2Hex (substr ($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 pinyin sort 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; } Copy Code

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