PHP digital-to-capital

Recent research in algorithms, found a digital-to-capitalization algorithms quite interesting to share for everyone to see:

function get_amount ($ NUM) {
        $ c1 = "Zero One II Triple wantonly Wu Lu qi Ba Jiu";
        $ c2 = "sub-diagonal elements pick Bai Qian Wan pick Bai thousand billion";
        $ NUM = round ($ NUM, 2) ;
        $ NUM = NUM * $ 100;
        IF (strlen ($ NUM)> 10) {
            return "data is too long, it is not so much money, the check";
        }
        $ I = 0;
        $ C = "";
        the while (. 1) {
            IF (I $ == 0) {
                $ n-= substr ($ NUM, strlen ($ NUM) -1,. 1);
            } the else {
                $ $ n-NUM = 10%;
            }
            $ P1 = substr ($ C1,. 3 n-* $,. 3);
            $ P2 = substr ($ C2,. 3 * I $,. 3);
            ! IF (n-$ = '0' || ($ n-== '0' && ($ P2 = = 'one hundred million' || $ p2 == 'Wan'|| $ p2 == 'meta'))) {
                $c = $p1 . $p2 . $c;
            } else {
                $c = $p1 . $c;
            }
            $i = $i + 1;
            $num = $num / 10;
            $num = (int)$num;
            if ($num == 0) {
                break;
            }
        }
        $j = 0;
        $slen = strlen($c);
        while ($j < $slen) {
            $m = substr($c, $j, 6);
            if ($m == '零元' || $m == '零万' || $m == '零亿' || $m == '零零') {
                $left = substr($c, 0, $j);
                $right = substr($c, $j + 3);
                $c = $left . $right;
                $j = $j-3;
                sLen-sLen = $ $. 3;
            }
            $ $ = J + J. 3;
        }
        return $ C;
        IF (substr ($ C, strlen (C $) -3,. 3) == 'zero') {
            $ C = substr (C $, 0, strlen (C $) -3);
        }
        IF (empty ($ C)) {
            return "zero dollars whole";
        } the else {
            return $ C "whole.";
        }
    }