Created
July 1, 2020 13:21
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Bill in AJAX
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| <?php | |
| if (isset($_POST['unit'])) { | |
| $total = 0; | |
| $unit = (int) $_POST['unit']; | |
| function calculate($unit, $range, $price) | |
| { | |
| $xunit = $range[1] - $range[0] + 1; | |
| if ($unit <= $xunit && $unit > 0) { | |
| $bill = $unit * $price; | |
| echo " | |
| <tr> | |
| <td>" . implode("-", $range) . "</td> | |
| <td>$price</td> | |
| <td>$unit</td> | |
| <td>$bill BDT</td> | |
| </tr> | |
| "; | |
| return array($unit - $xunit, $bill); | |
| } elseif ($unit > $xunit) { | |
| $bill = $xunit * $price; | |
| $newUnit = $unit - $xunit; | |
| echo " | |
| <tr> | |
| <td>" . implode("-", $range) . "</td> | |
| <td>$price</td> | |
| <td>" . $xunit . "</td> | |
| <td>$bill BDT</td> | |
| </tr> | |
| "; | |
| return array($newUnit, $bill); | |
| } | |
| } | |
| echo "<h3>Bill for $unit Unit</h3>"; | |
| echo "<table class=\"table table-hover\"> | |
| <thead> | |
| <tr> | |
| <th>Range</th> | |
| <th>Price/Unit</th> | |
| <th>Unit</th> | |
| <th>Bill</th> | |
| </tr> | |
| </thead> | |
| <tbody> | |
| "; | |
| $newUnit = 0; | |
| if ($unit > 0) { | |
| $rep = calculate($unit, array(1, 75), 3.53); | |
| $newUnit = $rep[0]; | |
| $total += $rep[1]; | |
| } | |
| if ($newUnit > 0) { | |
| $rep = calculate($newUnit, array(76, 200), 5.01); | |
| $newUnit = $rep[0]; | |
| $total += $rep[1]; | |
| } | |
| if ($newUnit > 0) { | |
| $rep = calculate($newUnit, array(201, 300), 5.19); | |
| $newUnit = $rep[0]; | |
| $total += $rep[1]; | |
| } | |
| if ($newUnit > 0) { | |
| $rep = calculate($newUnit, array(301, 400), 5.42); | |
| $newUnit = $rep[0]; | |
| $total += $rep[1]; | |
| } | |
| if ($newUnit > 0) { | |
| $rep = calculate($newUnit, array(401, 600), 8.51); | |
| $newUnit = $rep[0]; | |
| $total += $rep[1]; | |
| } | |
| if ($newUnit > 0) { | |
| $rep = calculate($newUnit, array(601, 1000000), 9.93); | |
| $newUnit = $rep[0]; | |
| $total += $rep[1]; | |
| } | |
| $meter = $_POST['meter']; | |
| $newTotal = $total + $meter; | |
| $vat = ($newTotal * 5) / 100; | |
| $gTotal = $newTotal + $vat; | |
| echo " | |
| </tbody> | |
| <tfoot> | |
| <tr> | |
| <th></th> | |
| <th></th> | |
| <th>Bill</th> | |
| <th>$total BDT</th> | |
| </tr> | |
| <tr> | |
| <th></th> | |
| <th></th> | |
| <th>Meter Charge</th> | |
| <th>$meter BDT</th> | |
| </tr> | |
| <tr> | |
| <th></th> | |
| <th></th> | |
| <th>Total</th> | |
| <th>$newTotal BDT</th> | |
| </tr> | |
| <tr> | |
| <th></th> | |
| <th></th> | |
| <th>Vat</th> | |
| <th>$vat BDT</th> | |
| </tr> | |
| <tr> | |
| <th></th> | |
| <th></th> | |
| <th>G. Total</th> | |
| <th>$gTotal BDT</th> | |
| </tr> | |
| </tfoot> | |
| </table>"; | |
| die(); | |
| } | |
| ?> | |
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <title>Electricity Bill Calculator</title> | |
| <!-- Bootstrap CSS --> | |
| <link href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet"> | |
| <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries --> | |
| <!-- WARNING: Respond.js doesn't work if you view the page via file:// --> | |
| <!--[if lt IE 9]> | |
| <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script> | |
| <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script> | |
| <![endif]--> | |
| <!-- jQuery --> | |
| <script src="http://code.jquery.com/jquery.js"></script> | |
| <!-- Bootstrap JavaScript --> | |
| <script src="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script> | |
| <script type="text/javascript"> | |
| function showResult(){ | |
| $.ajax({ | |
| method: "POST", | |
| url: "", | |
| data: $("#input_data").serialize(), | |
| success: function(data){ | |
| $('#result').html(data); | |
| },error: function(data){ | |
| } | |
| }); | |
| } | |
| </script> | |
| </head> | |
| <body> | |
| <div class="container"> | |
| <h1>Electricity Bill Calculator</h1> | |
| <form action="#" method="POST" role="form" id="input_data"> | |
| <div class="row"> | |
| <div class="col-lg-6"> | |
| <div class="form-group"> | |
| <label for="">Total Unit / Kwh</label> | |
| <input type="text" class="form-control" name="unit" placeholder="Input total Unit"> | |
| </div> | |
| </div> | |
| <div class="col-lg-6"> | |
| <div class="form-group"> | |
| <label for="">Meter Charge</label> | |
| <select class="form-control" name="meter"> | |
| <option value="55">55 BDT</option> | |
| <option value="70">70 BDT</option> | |
| </select> | |
| </div> | |
| </div> | |
| <div class="col-lg-6"> | |
| <button type="button" class="btn btn-primary" onclick="showResult();">Calculate</button> | |
| </div> | |
| </div> | |
| </form> | |
| <hr> | |
| <div id="result"></div> | |
| <footer> | |
| © <?php echo date('Y'); ?> , <a href="http://saiful.im/">Saiful Islam</a> | |
| </footer> | |
| </div> | |
| </body> | |
| </html> |
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Thank you so much brother, I really appreciate your hard work. That's awesome work you have done.