In this example, we will write a PHP program to convert Kilometers into Miles. The formula is very simple, 1 kilometer is equal to 0.62137119 miles, which is the conversion factor from kilometers to miles.
So we just have to multiply the kilometer value with 0.62137119, eg: 5 kms x 0.62137119 = 3.1068 miles.
Here is a simple PHP Snippet:
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<?php $kms = 5; //1 km is equal to 0.62137119 so the conversion factor is $cf = 0.62137119; $result = $kms * $cf; ?> |
Let’s write the same with a beautiful HTML form to get the Kilometer input from the user and convert into miles and display the result on the browser.
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<?php if ( isset($_POST['convert']) ) { $kms = $_POST['kms']; //1 km is equal to 0.62137119 so the conversion factor is $cf = 0.62137119; $result = $kms * $cf; } ?> <!doctype html> <html lang="en"> <head> <title>PHP program to Convert Kilometers into Miles</title> <!-- Required meta tags --> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <!-- Bootstrap CSS --> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous"> </head> <body> <div class="container"> <div class="row"> <div class="col"> <form method="post" action=""> <br><h2>PHP program to Convert Kilometers into Miles</h2><br> <div class="form-group"> <label for="kms"><h4>Enter Kms</h4></label> <input type="text" min="0" value="<?=(isset($kms)) ? $kms : '10';?>" name="kms" class="form-control" pattern="[0-9]*" title="Please enter only numbers"> <small id="helpId" class="text-muted">Enter the Kms in numbers and click the button to Convert it</small> </div> <div class="form-group"> <h5>Result:<span id="res"> <?=(isset($result)) ? $result : '';?></span></h5> </div> <div class="form-group"> <button type="submit" name="convert" class="btn btn-primary">Convert to Miles</button> </div> </form> </div> </div> </div> </body> </html> |
It’s a simple program, so go through the above lines of code to understand the functionality.
You can see the live of the above PHP program here,
