A function of Arabic numerals to Chinese numerals

function | Chinese recently wrote a "Arabic numeral to Chinese digit" function. Search the elite area and see a similar one.


feel my algorithm is good, so posted out to share


If you want to use the conversion of the amount, the processing of the decimal part should be modified


<?php


function Ch_num ($num, $mode =true) {


$char = Array ("0", "one", "II", "three", "Restaurant", "WU", "Lu", "Qi", "ba", "Nine");


$DW = Array ("", "Pick Up", "Bai", "Qian", "", "Million", "billion", "trillion");


$dec = "dot";


$retval = "";





if ($mode)


Preg_match_all ("/^0*" (\d*) \.? (\d*)/", $num, $ar);


Else


Preg_match_all ("/(\d*) \.?" (\d*)/", $num, $ar);





if ($ar [2][0]!= "")


$retval = $dec. Ch_num ($ar [2][0],false); If there are decimals, first recursively handle decimal


if ($ar [1][0]!= "") {


$str = Strrev ($ar [1][0]);


for ($i =0; $i <strlen ($STR); $i + +) {


$out [$i] = $char [$STR [$i]];


if ($mode) {


$out [$i]. = $str [$i]!= "0"? $DW [$i%4]: "";


if ($str [$i]+ $str [$i-1] = = 0)


$out [$i] = "";


if ($i%4 = 0)


$out [$i]. = $DW [4+floor ($i/4)];


}


}


$retval = Join ("", Array_reverse ($out)). $retval;


}


return $retval;


}





//echo ch_num ("12345006789001.123");


//echo ch_num ("880079.1234");


Echo ch_num ("300045.0123");





?>