@php

function numberTowords($num)
{ 
$ones = array(
1 => "ONE",
2 => "TWO",
3 => "THREE",
4 => "FOUR",
5 => "FIVE",
6 => "SIX",
7 => "SEVEN",
8 => "EIGHT",
9 => "NINE",
10 => "TEN",
11 => "ELEVEN",
12 => "TWELVE",
13 => "THIRTEEN",
14 => "FOURTEEN",
15 => "FIFTEEN",
16 => "SIXTEEN",
17 => "SEVENTEEN",
18 => "EIGHTEEN",
19 => "NINETEEN"
);
$tens = array(
1 => "TEN",
2 => "TWENTY",
3 => "THIRTY", 
4 => "FORTY", 
5 => "FIFTY", 
6 => "SIXTY", 
7 => "SEVENTY", 
8 => "EIGHTY", 
9 => "NINETY" 
);
$hundreds = array(
"HUNDRED", 
"THOUSAND", 
"MILLION", 
"BILLION", 
"TRILLION", 
"QUARDRILLION" 
);
$num = number_format($num,2,".",",");
$num_arr = explode(".",$num);
$wholenum = $num_arr[0];
$decnum = $num_arr[1];
$whole_arr = array_reverse(explode(",",$wholenum));
krsort($whole_arr);
$words = "";
foreach($whole_arr as $key => $i) {
if($i == 0) {
continue;
}
if($i < 20) {
$words .= $ones[intval($i)];
} elseif($i < 100) {
if(substr($i,0,1) == 0 && strlen($i) == 3) {
$words .= $tens[substr($i,1,1)];
if(substr($i,2,1) != 0) {
$words .= " ".$ones[substr($i,2,1)];
}
} else {
$words .= $tens[substr($i,0,1)];
if(substr($i,1,1) != 0) {
$words .= " ".$ones[substr($i,1,1)];
}
}
} else {
// $words .= $ones[substr($i,0,1)]." ".$hundreds[0];
if(substr($i,1,1) != 0 || substr($i,2,1) != 0) {
$words .= $ones[substr($i,0,1)]." ".$hundreds[0];
} else {
$words .= $ones[substr($i,0,1)]." ".$hundreds[0];
}
if(substr($i,1,2) < 20 && substr($i,1,1) != 0) {
$words .= " ".$ones[(substr($i,1,2))];
} else {
if(substr($i,1,1) != 0) {
$words .= " ".$tens[substr($i,1,1)];
}
if(substr($i,2,1) != 0) {
$words .= " ".$ones[substr($i,2,1)];
}
}
}
if($key > 0) {
$words .= " ".$hundreds[$key]." ";
}
}

$words .= " TAKA ";

if($decnum > 0) {
$words .= " AND ";
if($decnum < 20) {
$words .= $ones[intval($decnum)];
} elseif($decnum < 100) {
$words .= $tens[substr($decnum,0,1)];
if(substr($decnum,1,1) != 0) {
$words .= " ".$ones[substr($decnum,1,1)];
}
}
$words .= $subunit??' PAISA ONLY.';
}
else{

$words .= "ONLY.";
}
return $words;
} 


@endphp