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Roman Numeral To Decimal in PHP

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Submitted on: 8/5/2016 12:25:20 PM
By: Jake R. Pomperada  
Level: Beginner
User Rating: By 1 Users
Compatibility: PHP 5.0
Views: 2555
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     A simple program that will convert the roman number into decimal equivalent in PHP. Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com. My mobile number here in the Philippines is 09173084360.

 
code:
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//**************************************
// Name: Roman Numeral To Decimal in PHP
// Description:A simple program that will convert the roman number into decimal equivalent in PHP.
Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
// By: Jake R. Pomperada
//**************************************

<html>
<title>Roman Numeral To Decimal in PHP</title>
<style>
 body {
font-family: arial;
font-size: 18px;
font-weight: bold;
 };
</style>
<body>
 <?php
error_reporting(0);
 $input_A = $_POST['inputFirst'];
 if(isset($_POST['ClearButton'])){
 $input_A="";
 $display_result="";
 }
?>
<br>
 <h2>Roman Numeral To Decimal in PHP </h2>
<form action="" method="post">
Enter Roman Numeral
 <input type="text" name="inputFirst"
 value="<?php echo $input_A; ?>" size="5" autofocus required/>
 <br><br>
 <input type="submit" name="SubmitButton" value="Ok"/>
   
 <input type="submit" name="ClearButton" value="Clear"/>
</form>
<?php
function roman_convert($input_roman){
 $di=array('I'=>1,
'V'=>5,
'X'=>10,
'L'=>50,
'C'=>100,
'D'=>500,
'M'=>1000);
 $result=0;
 if($input_roman=='') return $result;
for($i=0;$i<strlen($input_roman);$i++){
$result=(($i+1)<strlen($input_roman) and
 $di[$input_roman[$i]]<$di[$input_roman[$i+1]])?($result-$di[$input_roman[$i]])
:($result+$di[$input_roman[$i]]);
}
 return $result;
}
if(isset($_POST['SubmitButton'])){
$original = $input_A;
$value = roman_convert($input_A);
 echo "<br>";
 $display_result = "The Decimal equivalent of " .$original. " is "
.$value.".";
 echo $display_result;
 echo "<br>";
 }
?>
</body>
</html>


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