Menu Konverter Desimal dengan PHP (terbaru)

Kawan, kali ini saya mau melengkapi postingan tentang PHP ..
Sebelumnya saya sudah meng posting coding konversi bilangan, namun tanpa pilihan menu ..
Bimbingan : Mr. Hadi


Berikut ada lah Coding nya .. kalian harus membuat 2 file php !
selamat menyimak :)


<body>
     
<?php
if(isset($_POST['submit'])){//isset : penekanan form
$nama=$_REQUEST['nama'];
    if(isset($_POST['gender'])){
        $gender=$_REQUEST['gender'];
    }
    else{
        $gender='';
    }
$cek='';
}
else{
    $nama='';
    $gender='';
    $cek='Please Login :D';
}
?>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>Login</title>
                <style type="text/css">
        body{
    font-family:Comic sans MS;
    background:yellow;
}

h2{
    text-decoration:underline;
    color:red;
    font-weight:bold;
    text-align:center;  
}
        </style>
    </head>
    <body>
<h1 class='a'>
<?php echo $cek ?></h1>
<br>
        <form action="KonversiBilangan.php" method="post" name="form1">
            <p>
<h3 class='b'>
Name : <input class='highlight' placeholder="" required="required" type="text" name="nama" size ="30" value="<?php echo $nama ?>"/></h3>
</p>
<p>
<h3 class='b'>
Your's Gender : <br>
                <input type="radio" name="gender" value="L"
                               <?php ($gender=="L")? print 'checked=""' : print ''; ?>/>
                Man<br>
                <input type="radio" name="gender" value="P"
                       <?php ($gender=="P")? print 'checked=""' : print ''; ?>/>
                Woman
            </h3>
</p>
<input type="submit" name="submit" value="Login">
        </form>
    </body>
</html>

maka hasil pada browser sperti berikut :

Buat new php Web Page dengan coding :
               <style type="text/css">
            body
           
            a:active{
                color: blue;
            }
            .b{
                color: #E3941D;
                text-shadow:4px 0px 7px black;
                font-family:AcidDreamer;
                font-weight:bold;
            }
            body{
    font-family:Comic sans MS;
    background:yellow;
}

h2{
    text-decoration:underline;
    color:red;
    font-weight:bold;
    text-align:left;   
}
        </style>
            <h1 class='b''>
Silahkan Konversikan Bilangan </h1>
<tr>
    <td align ="center">
    <?php
        if(isset ($_POST['submit'])){
            $nama=$_REQUEST['nama'];
            if(isset($_POST['gender'])){
                $gender=$_REQUEST['gender'];
            }
            else{
                $gender='';
            }
        }
        if(isset ($_POST['submit'])){
        if($nama==''|| $gender==''){// tanda || : OR
            echo"<script>
                 alert('Maaf data kurang lengkap ? Isi Nama dan Jenis Kelamin');
                 document.location.href='Validator.php';
                 </script>";//menggunakan javascript
        }
        else{
                   }
        }
    ?>
    </td>
    </tr>
</table>
<tr>
    <td align ="center">
    <p>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>
"
          method="POST" name="form1">
        <h2>
 Inputkan Angka Desimal : </h2>
<input class='highlight' placeholder="Input Angka" required="required" type="text" name="decimal" size ="25" value="<?php echo $decimal ?>"/><br>
        <h2>
 Pilih Konversi yang anda ingin kan : <br><br>
        <input type="radio" name="pilih" value="B"
               <?php ($pilih=="B")? print 'checked=""' : print ''; ?>/>
        Bilangan Biner<br>
        <input type="radio" name="pilih" value="H"
               <?php ($pilih=="H")? print 'checked=""' : print ''; ?>/>
        Bilangan Hexa<br>
        <input type="radio" name="pilih" value="O"
               <?php ($pilih=="O")? print 'checked=""' : print ''; ?>/>
        Bilangan Oktal<br>
        </h2>
<input type="submit" name="submit1" value="Konversikan"><br>
    </form>

    </head>
    <body>
        <!-- Proses Konversi -->
        <?php
        if(isset($_POST['submit1'])){//isset : penekanan form
        $decimal=$_REQUEST['decimal'];
            if(isset($_POST['pilih'])){
                $pilih=$_REQUEST['pilih'];
            }
            else{
                $pilih='';
            }
        }
        else{
            $decimal='';
            $pilih='';
        }
        if(isset ($_POST['submit1'])){
        if($decimal==''|| $pilih==''){
            echo"<script>alert('Waw, kesalahan! Isi nilai Desimal dan pilih Konversi !!')</script>";//menggunakan javascript
        }
        else{
            if($pilih=='B'){
            //Konversi ke Biner
            if (isset($_POST['decimal'])) {
                $decimal = $_POST['decimal'];
                $original = $_POST['decimal'];
                $binary = '';
                if (preg_match('/[^0-9]/',$decimal)) {
                        die ("Maaf. Inputan salah...");
                }
                else {
                    while ($decimal > 0) {
                        if ($decimal%2 == 0) {
                            $binary .= 0;
                            $decimal /= 2;
                        }
                        else {
                            $binary .= 1;
                            $decimal = ($decimal/2)-0.5;
                        }
                    }
                    $result = strrev($binary);
                    echo "<br><h2>
Bilangan decimal : $original jika dijadikan Biner hasilnya adalah $result.</h2>
";
                    }
                }
                else {

                }
            }
            else{
                    if($pilih=='H'){
                    //Konversi ke Hexa
                        if(isset($_POST['decimal'])){
                        $des=$_POST['decimal'];
                        $original=$_POST['decimal'];
                        $hex='';
                        while ($des>0){
                        $hasil=$des%16;
                            switch($hasil){
                            case 0 : $hex.="0"; break;
                            case 1 : $hex.="1"; break;
                            case 2 : $hex.="2"; break;
                            case 3 : $hex.="3"; break;
                            case 4 : $hex.="4"; break;
                            case 5 : $hex.="5"; break;
                            case 6 : $hex.="6"; break;
                            case 7 : $hex.="7"; break;
                            case 8 : $hex.="8"; break;
                            case 9 : $hex.="9"; break;
                            case 10: $hex.="A"; break;
                            case 11: $hex.="B"; break;
                            case 12: $hex.="C"; break;
                            case 13: $hex.="D"; break;
                            case 14: $hex.="E"; break;
                            case 15: $hex.="F";
                            default:break;
                            }
                                if($des/16==0){
                                $sisa=($des%16);
                                $des=$sisa;
                                }
                                    else{
                                    $sisa=($des/16);
                                    $des=$sisa%16;
                                    }}
                                    $result = strrev($hex);
                                    echo "<br><h2>
Bilangan decimal : $original jika dijadikan Hexadecimal hasilnya adalah $result.</h2>
";
                        }
                    }
                    else{
                        //Konversi ke Oktal
                         if(isset($_POST['decimal'])){
                         $des=$_POST['decimal'];
                         $original=$_POST['decimal'];
                         $octal='';
                         while ($des>0){
                         $hasil=$des%8;
                         switch($hasil){
                         case 0 : $octal.="0"; break;
                         case 1 : $octal.="1"; break;
                         case 2 : $octal.="2"; break;
                         case 3 : $octal.="3"; break;
                         case 4 : $octal.="4"; break;
                         case 5 : $octal.="5"; break;
                         case 6 : $octal.="6"; break;
                         case 7 : $octal.="7";
                         default:break;
                         }
                         if($des/8>0){
                            $sisa=($des/8);
                            $des=$sisa%8;
                            }
                            else{
                            $sisa=($des%8);
                            $des=$sisa;
                            }}
                            $result = strrev($octal);
                            echo "<br><h2>
Bilangan decimal : $original jika dijadikan Oktal hasilnya adalah $result.</h2>
";
                            }
                            else{

                            }
                    }
            }
        }
        }
        echo "<br><h2>
<a href='Validator.php'>RESET</a></h2>
<br><br>";
        ?>
    <!-- End proses Konversi -->
    </td>
    </tr>
</table>
    </body>
</html>


hasil pada browser akan tampil seperti berikut :






to Biner :


to Hexa :


to Octal :


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