Membuat Kalkulator Kalori dengan Menggunakan PHP

Algoritma :

Mulai
1. Pilih Jenis Kelamin
2. Input Usia
3. Input Berat Badan
4. Input Tinggi Badan
5. Proses :
    a. Pilhan Perempuan
        Kalori = 655 + (9.6 * berat ) + (1.8 * tinggi) - (4.7 * usia)
        Output Kalori
   b. Pilihan Laki - laki
       Kalori = 66 + (13.7 *berat) + (5 * tinggi) - (6.8 * usia)
       Output Kalori
Selesai.

Kode Program

 <?php
 $age=$_POST['age'];
 $weight=$_POST['weight'];
 $height = $_POST['height'];
 $calories="0.0215183";
 $gender=$_POST['gender'];
 
 switch ($gender){
         case 'Female':
  $gender= 655 + (9.6 * $weight ) + (1.8 * $height) - (4.7 * $age);
         echo "<p>Your estimated daily metabolic rate is $gender </p>";
         echo "<p>This means that you need rouhgly $gender calories a day to maintain your current weight.</p>";
 
 break;
  case 'Male':
  $gender=66 + (13.7 *$weight) + (5 * $height) - (6.8 * $age);
  echo "<p>Your estimated daily metabolic rate is $gender </p>";
  echo "<p>This means that you need rouhgly $gender calories a day to maintain your current weight.</p>";
 
 }
?>