Posted on by Kalkicode
Code Conversion

# Decimal to roman numeral converter in php

Php program for Decimal to roman numeral converter. Here mentioned other language solution.

``````<?php
//  Php program for
//  Conversion from Decimal to roman number
class Perform
{
// Display roman value of n
function result(\$n)
{
switch (\$n) {
// Test Cases
case 1:
echo "I";
break;
case 4:
echo "IV";
break;
case 5:
echo "V";
break;
case 9:
echo "IX";
break;
case 10:
echo "X";
break;
case 40:
echo "XL";
break;
case 50:
echo "L";
break;
case 90:
echo "XC";
break;
case 100:
echo "C";
break;
case 400:
echo "CD";
break;
case 500:
echo "D";
break;
case 900:
echo "DM";
break;
case 1000:
echo "M";
break;
}
}
function select(\$number, &\$collection, \$size)
{
\$n = 1;
\$i = 0;
for (
\$i = 0; \$i < \$size; ++\$i)
{
if (\$number >= \$collection[\$i])
{
\$n = \$collection[\$i];
}
else
{
break;
}
}
Perform::result(\$n);
// Reduce the value of number
return \$number - \$n;
}
function romanNo(\$number)
{
if (\$number <= 0)
{
// When is not a natural number
return;
}
// Base case collection
\$collection = array(
1, 4, 5, 9, 10, 40, 50, 90, 100, 400, 500, 900, 1000
);
// Get the size of collection
\$size = count(\$collection);
echo " " . \$number . " : ";
while (\$number > 0)
{
\$number = Perform::select(\$number, \$collection, \$size);
}
print("\n");
}

}
function main()
{
// Test Case
Perform::romanNo(10);
Perform::romanNo(18);
Perform::romanNo(189);
Perform::romanNo(604);
Perform::romanNo(982);
Perform::romanNo(3000);
}
main();``````

Output

`````` 10 : X
18 : XVIII
189 : CLXXXIX
604 : DCIV
982 : DMLXXXII
3000 : MMM
``````

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