Convert number into chinese string with php

  1. convert from int to chinese string e.g. 125 -> 一百二十五
 function numToWord($num){
     $chiNum = array('零', '一', '二', '三', '四', '五', '六', '七', '八', '九');
     $chiUni = array('','十', '百', '千', '萬', '十', '百', '千', '億');

     $chiStr = '';
     $num_str = (string)$num;
     $count = strlen($num_str);
     $last_flag = true; // pervious number is 0?
     $zero_flag = true; // first number?
     $temp_num = null;
 
     if ($count == 2) { // 2 digit number
         $temp_num = $num_str[0];
         $chiStr = $temp_num == 1 ? $chiUni[1] : $chiNum[$temp_num].$chiUni[1];
         $temp_num = $num_str[1];
         $chiStr .= $temp_num == 0 ? '' : $chiNum[$temp_num];
     }else if($count > 2){
         $index = 0;
         for ($i=$count-1; $i >= 0 ; $i--) {
                 $temp_num = $num_str[$i];
                 if ($temp_num == 0) {
                     if (!$zero_flag && !$last_flag ) {
                         $chiStr = $chiNum[$temp_num]. $chiStr;
                         $last_flag = true;
                     }
 
                     if($index == 4 && $temp_num == 0){
                         $chiStr = $chiUni[4].$chiStr;
                     }
                 }else{
                     if($i == 0 && $temp_num == 1 && $index == 1 && $index == 5){
                         $chiStr = $chiUni[$index%9] .$chiStr;
                     }else{
                         $chiStr = $chiNum[$temp_num].$chiUni[$index%9] .$chiStr;
                     }
                     $zero_flag = false;
                     $last_flag = false;
                 }
                 $index ++;
         }
     }else{
         $chiStr = $chiNum[$num_str[0]];
     }
     return $chiStr;
 } 

2. convert from chinese string into int, eg. 一百二十五 > 125

 function cn2num($string){
     if(is_numeric($string)){
         return $string;
     }
     // '仟' => '千','佰' => '百','拾' => '十',
     $string = str_replace('仟', '千', $string);
     $string = str_replace('佰', '百', $string);
     $string = str_replace('拾', '十', $string);
     $num = 0;
     $wan = explode('萬', $string);
     if (count($wan) > 1) {
         $num += cn2num($wan[0]) * 10000;
         $string = $wan[1];
     }
     $qian = explode('千', $string);
     if (count($qian) > 1) {
         $num += cn2num($qian[0]) * 1000;
         $string = $qian[1];
     }
     $bai = explode('百', $string);
     if (count($bai) > 1) {
         $num += cn2num($bai[0]) * 100;
         $string = $bai[1];
     }
     $shi = explode('十', $string);
     if (count($shi) > 1) {
         $num += cn2num($shi[0] ? $shi[0] : '一') * 10;
         $string = $shi[1] ? $shi[1] : '零';
     }
     $ling = explode('零', $string);
     if (count($ling) > 1) {
         $string = $ling[1];
     }
     $d = array(
         '一' => '1','二' => '2','三' => '3','四' => '4','五' => '5','六' => '6','七' => '7','八' => '8','九' => '9',
         '壹' => '1','贰' => '2','叁' => '3','肆' => '4','伍' => '5','陆' => '6','柒' => '7','捌' => '8','玖' => '9',
         '零' => 0, '0' => 0, 'O' => 0, 'o' => 0,
         '两' => 2
     );
     return $num + @$d[$string];
 } 
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